[apple/xnu.git] / bsd / sys / conf.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * 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.
 *
 *	@(#)conf.h	8.5 (Berkeley) 1/9/95
 */

#ifndef _SYS_CONF_H_
#define _SYS_CONF_H_ 1

#include <sys/appleapiopts.h>
#include <sys/cdefs.h>

/*
 * Definitions of device driver entry switches
 */

struct buf;
struct proc;
struct tty;
struct uio;
struct vnode;

#ifdef __APPLE_API_UNSTABLE
/* 
 * Device switch function types.
 */
typedef int  open_close_fcn_t	__P((dev_t dev, int flags, int devtype,
				     struct proc *p));

typedef struct tty *d_devtotty_t __P((dev_t dev));

typedef	void strategy_fcn_t	__P((struct buf *bp));
typedef int  ioctl_fcn_t	__P((dev_t dev, u_long cmd, caddr_t data,
				     int fflag, struct proc *p));
typedef int  dump_fcn_t	();     /* parameters vary by architecture */
typedef	int  psize_fcn_t	__P((dev_t dev));
typedef int  read_write_fcn_t 	__P((dev_t dev, struct uio *uio, int ioflag));
typedef	int  stop_fcn_t 	__P((struct tty *tp, int rw));
typedef	int  reset_fcn_t 	__P((int uban));
typedef	int  select_fcn_t 	__P((dev_t dev, int which, void * wql, struct proc *p));
typedef	int  mmap_fcn_t 	__P(());
typedef	int  getc_fcn_t 	__P((dev_t dev));
typedef	int  putc_fcn_t 	__P((dev_t dev, char c));
typedef int  d_poll_t		__P((dev_t dev, int events, struct proc *p));

#define	d_open_t	open_close_fcn_t
#define	d_close_t	open_close_fcn_t
#define	d_read_t	read_write_fcn_t
#define	d_write_t	read_write_fcn_t
#define	d_ioctl_t	ioctl_fcn_t
#define	d_stop_t	stop_fcn_t
#define	d_reset_t	reset_fcn_t
#define	d_select_t	select_fcn_t
#define	d_mmap_t	mmap_fcn_t
#define	d_strategy_t	strategy_fcn_t
#define	d_getc_t	getc_fcn_t
#define	d_putc_t	putc_fcn_t

__BEGIN_DECLS
int	enodev ();		/* avoid actual prototype for multiple use */
void	enodev_strat();
__END_DECLS

/*
 * Versions of enodev() pointer, cast to appropriate function type. For use
 * in empty devsw slots.
 */
#define eno_opcl		((open_close_fcn_t *)&enodev)
#define eno_strat		((strategy_fcn_t *)&enodev_strat)
#define eno_ioctl		((ioctl_fcn_t *)&enodev)
#define eno_dump		((dump_fcn_t *)&enodev)
#define eno_psize		((psize_fcn_t *)&enodev)
#define eno_rdwrt		((read_write_fcn_t *)&enodev)
#define eno_stop		((stop_fcn_t *)&enodev)
#define eno_reset		((reset_fcn_t *)&enodev)
#define eno_mmap		((mmap_fcn_t *)&enodev)
#define eno_getc		((getc_fcn_t *)&enodev)
#define eno_putc		((putc_fcn_t *)&enodev)
#define eno_select		((select_fcn_t *)&enodev)

/*
 * Types for d_type.
 */
#define	D_TAPE	1
#define	D_DISK	2
#define	D_TTY	3

/*
 * Block device switch table
 */
struct bdevsw {
	open_close_fcn_t	*d_open;
	open_close_fcn_t	*d_close;
	strategy_fcn_t		*d_strategy;
	ioctl_fcn_t		*d_ioctl;
	dump_fcn_t		*d_dump;
	psize_fcn_t		*d_psize;
	int			d_type;
};

#ifdef KERNEL

d_devtotty_t    nodevtotty;
d_write_t	nowrite;

#ifdef __APPLE_API_PRIVATE
extern struct bdevsw bdevsw[];
#endif /* __APPLE_API_PRIVATE */

/*
 * Contents of empty bdevsw slot.
 */
#define	 NO_BDEVICE						\
	{ eno_opcl,	eno_opcl,	eno_strat, eno_ioctl,	\
	  eno_dump,	eno_psize,	0 	}
	  
#endif /* KERNEL */

/*
 * Character device switch table
 */
struct cdevsw {
	open_close_fcn_t	*d_open;
	open_close_fcn_t	*d_close;
	read_write_fcn_t	*d_read;
	read_write_fcn_t	*d_write;
	ioctl_fcn_t		*d_ioctl;
	stop_fcn_t		*d_stop;
	reset_fcn_t		*d_reset;
	struct	tty 		**d_ttys;
	select_fcn_t		*d_select;
	mmap_fcn_t		*d_mmap;
	strategy_fcn_t		*d_strategy;
	getc_fcn_t		*d_getc;
	putc_fcn_t		*d_putc;
	int			d_type;
};

#ifdef KERNEL

#ifdef __APPLE_API_PRIVATE
extern struct cdevsw cdevsw[];
#endif /* __APPLE_API_PRIVATE */

/*
 * Contents of empty cdevsw slot.
 */

#define	 NO_CDEVICE						 	 \
    {								  	\
	eno_opcl,	eno_opcl,	eno_rdwrt,	eno_rdwrt,	\
	eno_ioctl,	eno_stop,	eno_reset,	0,	  	\
	(select_fcn_t *)seltrue,	eno_mmap,	eno_strat,	eno_getc,	\
	eno_putc,	0 					  	\
    }
#endif /* KERNEL */
    
/*
 * Line discipline switch table
 */
struct linesw {
	int	(*l_open)	__P((dev_t dev, struct tty *tp));
	int	(*l_close)	__P((struct tty *tp, int flags));
	int	(*l_read)	__P((struct tty *tp, struct uio *uio,
				     int flag));
	int	(*l_write)	__P((struct tty *tp, struct uio *uio,
				     int flag));
	int	(*l_ioctl)	__P((struct tty *tp, u_long cmd, caddr_t data,
				     int flag, struct proc *p));
	int	(*l_rint)	__P((int c, struct tty *tp));
	int	(*l_start)	__P((struct tty *tp));
	int	(*l_modem)	__P((struct tty *tp, int flag));
};

#ifdef KERNEL

#ifdef __APPLE_API_PRIVATE
extern struct linesw linesw[];
extern int nlinesw;
#endif /* __APPLE_API_PRIVATE */
 
int ldisc_register __P((int , struct linesw *));
void ldisc_deregister __P((int));
#define LDISC_LOAD      -1              /* Loadable line discipline */

#endif /* KERNEL */

#ifdef __APPLE_API_OBSOLETE
/*
 * Swap device table
 */
struct swdevt {
	dev_t	sw_dev;
	int	sw_flags;
	int	sw_nblks;
	struct	vnode *sw_vp;
};
#define	SW_FREED	0x01
#define	SW_SEQUENTIAL	0x02
#define	sw_freed	sw_flags	/* XXX compat */

#ifdef KERNEL
extern struct swdevt swdevt[];
#endif /* KERNEL */

#endif /* __APPLE_API_OBSOLETE */


#ifdef KERNEL
/*
 * ***_free finds free slot;
 * ***_add adds entries to the devsw table
 * If int arg is -1; finds a free slot
 * Returns the major number if successful
 *  else -1
 */
__BEGIN_DECLS
int  bdevsw_isfree __P((int));
int  bdevsw_add __P((int, struct bdevsw *));
int  bdevsw_remove __P((int, struct bdevsw *));
int  cdevsw_isfree __P((int));
int  cdevsw_add __P((int, struct cdevsw *));
int  cdevsw_remove __P((int, struct cdevsw *));
__END_DECLS
#endif /* KERNEL */

#endif /* __APPLE_API_UNSTABLE */

#endif /* _SYS_CONF_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
e5568f75 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
e5568f75 A	12	* This Original Code and all software distributed under the License are
e5568f75 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
e5568f75 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*-
	24	* Copyright (c) 1990, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	* (c) UNIX System Laboratories, Inc.
	27	* All or some portions of this file are derived from material licensed
	28	* to the University of California by American Telephone and Telegraph
	29	* Co. or Unix System Laboratories, Inc. and are reproduced herein with
	30	* the permission of UNIX System Laboratories, Inc.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	* 1. Redistributions of source code must retain the above copyright
	36	* notice, this list of conditions and the following disclaimer.
	37	* 2. Redistributions in binary form must reproduce the above copyright
	38	* notice, this list of conditions and the following disclaimer in the
	39	* documentation and/or other materials provided with the distribution.
	40	* 3. All advertising materials mentioning features or use of this software
	41	* must display the following acknowledgement:
	42	* This product includes software developed by the University of
	43	* California, Berkeley and its contributors.
	44	* 4. Neither the name of the University nor the names of its contributors
	45	* may be used to endorse or promote products derived from this software
	46	* without specific prior written permission.
	47	*
	48	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	49	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	50	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	51	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	52	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	53	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	54	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	56	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	57	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	58	* SUCH DAMAGE.
	59	*
	60	* @(#)conf.h 8.5 (Berkeley) 1/9/95
	61	*/
	62
	63	#ifndef _SYS_CONF_H_
	64	#define _SYS_CONF_H_ 1
	65
9bccf70c	66	#include <sys/appleapiopts.h>
55e303ae	67	#include <sys/cdefs.h>
9bccf70c	68
1c79356b A	69	/*
	70	* Definitions of device driver entry switches
	71	*/
	72
	73	struct buf;
	74	struct proc;
	75	struct tty;
	76	struct uio;
	77	struct vnode;
	78
9bccf70c	79	#ifdef __APPLE_API_UNSTABLE
1c79356b A	80	/*
	81	* Device switch function types.
	82	*/
	83	typedef int open_close_fcn_t __P((dev_t dev, int flags, int devtype,
	84	struct proc *p));
	85
	86	typedef struct tty *d_devtotty_t __P((dev_t dev));
	87
	88	typedef void strategy_fcn_t __P((struct buf *bp));
	89	typedef int ioctl_fcn_t __P((dev_t dev, u_long cmd, caddr_t data,
	90	int fflag, struct proc *p));
	91	typedef int dump_fcn_t (); /* parameters vary by architecture */
	92	typedef int psize_fcn_t __P((dev_t dev));
	93	typedef int read_write_fcn_t __P((dev_t dev, struct uio *uio, int ioflag));
	94	typedef int stop_fcn_t __P((struct tty *tp, int rw));
	95	typedef int reset_fcn_t __P((int uban));
0b4e3aa0	96	typedef int select_fcn_t __P((dev_t dev, int which, void * wql, struct proc *p));
1c79356b A	97	typedef int mmap_fcn_t __P(());
	98	typedef int getc_fcn_t __P((dev_t dev));
	99	typedef int putc_fcn_t __P((dev_t dev, char c));
	100	typedef int d_poll_t __P((dev_t dev, int events, struct proc *p));
	101
	102	#define d_open_t open_close_fcn_t
	103	#define d_close_t open_close_fcn_t
	104	#define d_read_t read_write_fcn_t
	105	#define d_write_t read_write_fcn_t
	106	#define d_ioctl_t ioctl_fcn_t
55e303ae A	107	#define d_stop_t stop_fcn_t
	108	#define d_reset_t reset_fcn_t
	109	#define d_select_t select_fcn_t
	110	#define d_mmap_t mmap_fcn_t
	111	#define d_strategy_t strategy_fcn_t
	112	#define d_getc_t getc_fcn_t
	113	#define d_putc_t putc_fcn_t
1c79356b A	114
	115	__BEGIN_DECLS
	116	int enodev (); /* avoid actual prototype for multiple use */
	117	void enodev_strat();
	118	__END_DECLS
	119
	120	/*
	121	* Versions of enodev() pointer, cast to appropriate function type. For use
	122	* in empty devsw slots.
	123	*/
	124	#define eno_opcl ((open_close_fcn_t *)&enodev)
	125	#define eno_strat ((strategy_fcn_t *)&enodev_strat)
	126	#define eno_ioctl ((ioctl_fcn_t *)&enodev)
	127	#define eno_dump ((dump_fcn_t *)&enodev)
	128	#define eno_psize ((psize_fcn_t *)&enodev)
	129	#define eno_rdwrt ((read_write_fcn_t *)&enodev)
	130	#define eno_stop ((stop_fcn_t *)&enodev)
	131	#define eno_reset ((reset_fcn_t *)&enodev)
	132	#define eno_mmap ((mmap_fcn_t *)&enodev)
	133	#define eno_getc ((getc_fcn_t *)&enodev)
	134	#define eno_putc ((putc_fcn_t *)&enodev)
	135	#define eno_select ((select_fcn_t *)&enodev)
	136
	137	/*
	138	* Types for d_type.
	139	*/
	140	#define D_TAPE 1
	141	#define D_DISK 2
	142	#define D_TTY 3
	143
	144	/*
	145	* Block device switch table
	146	*/
	147	struct bdevsw {
	148	open_close_fcn_t *d_open;
	149	open_close_fcn_t *d_close;
	150	strategy_fcn_t *d_strategy;
	151	ioctl_fcn_t *d_ioctl;
	152	dump_fcn_t *d_dump;
	153	psize_fcn_t *d_psize;
	154	int d_type;
	155	};
	156
9bccf70c	157	#ifdef KERNEL
1c79356b A	158
	159	d_devtotty_t nodevtotty;
	160	d_write_t nowrite;
	161
9bccf70c	162	#ifdef __APPLE_API_PRIVATE
1c79356b	163	extern struct bdevsw bdevsw[];
9bccf70c	164	#endif /* __APPLE_API_PRIVATE */
1c79356b A	165
	166	/*
	167	* Contents of empty bdevsw slot.
	168	*/
	169	#define NO_BDEVICE \
	170	{ eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
	171	eno_dump, eno_psize, 0 }
	172
9bccf70c	173	#endif /* KERNEL */
1c79356b A	174
	175	/*
	176	* Character device switch table
	177	*/
	178	struct cdevsw {
	179	open_close_fcn_t *d_open;
	180	open_close_fcn_t *d_close;
	181	read_write_fcn_t *d_read;
	182	read_write_fcn_t *d_write;
	183	ioctl_fcn_t *d_ioctl;
	184	stop_fcn_t *d_stop;
	185	reset_fcn_t *d_reset;
	186	struct tty **d_ttys;
	187	select_fcn_t *d_select;
	188	mmap_fcn_t *d_mmap;
	189	strategy_fcn_t *d_strategy;
	190	getc_fcn_t *d_getc;
	191	putc_fcn_t *d_putc;
	192	int d_type;
	193	};
	194
	195	#ifdef KERNEL
	196
9bccf70c	197	#ifdef __APPLE_API_PRIVATE
1c79356b	198	extern struct cdevsw cdevsw[];
9bccf70c	199	#endif /* __APPLE_API_PRIVATE */
1c79356b A	200
	201	/*
	202	* Contents of empty cdevsw slot.
	203	*/
	204
	205	#define NO_CDEVICE \
	206	{ \
	207	eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
	208	eno_ioctl, eno_stop, eno_reset, 0, \
55e303ae	209	(select_fcn_t *)seltrue, eno_mmap, eno_strat, eno_getc, \
1c79356b A	210	eno_putc, 0 \
1c79356b A	211	}
9bccf70c	212	#endif /* KERNEL */
1c79356b	213
1c79356b A	214	/*
	215	* Line discipline switch table
	216	*/
	217	struct linesw {
	218	int (l_open) __P((dev_t dev, struct tty tp));
	219	int (l_close) __P((struct tty tp, int flags));
	220	int (l_read) __P((struct tty tp, struct uio *uio,
	221	int flag));
	222	int (l_write) __P((struct tty tp, struct uio *uio,
	223	int flag));
	224	int (l_ioctl) __P((struct tty tp, u_long cmd, caddr_t data,
	225	int flag, struct proc *p));
	226	int (l_rint) __P((int c, struct tty tp));
	227	int (l_start) __P((struct tty tp));
	228	int (l_modem) __P((struct tty tp, int flag));
	229	};
	230
	231	#ifdef KERNEL
9bccf70c A	232
9bccf70c A	233	#ifdef __APPLE_API_PRIVATE
1c79356b A	234	extern struct linesw linesw[];
1c79356b A	235	extern int nlinesw;
9bccf70c	236	#endif /* __APPLE_API_PRIVATE */
1c79356b A	237
	238	int ldisc_register __P((int , struct linesw *));
	239	void ldisc_deregister __P((int));
	240	#define LDISC_LOAD -1 /* Loadable line discipline */
1c79356b	241
9bccf70c A	242	#endif /* KERNEL */
	243
	244	#ifdef __APPLE_API_OBSOLETE
1c79356b A	245	/*
	246	* Swap device table
	247	*/
	248	struct swdevt {
	249	dev_t sw_dev;
	250	int sw_flags;
	251	int sw_nblks;
	252	struct vnode *sw_vp;
	253	};
	254	#define SW_FREED 0x01
	255	#define SW_SEQUENTIAL 0x02
	256	#define sw_freed sw_flags /* XXX compat */
	257
	258	#ifdef KERNEL
	259	extern struct swdevt swdevt[];
9bccf70c A	260	#endif /* KERNEL */
	261
	262	#endif /* __APPLE_API_OBSOLETE */
	263
1c79356b A	264
	265	#ifdef KERNEL
	266	/*
	267	* ***_free finds free slot;
	268	* ***_add adds entries to the devsw table
	269	* If int arg is -1; finds a free slot
	270	* Returns the major number if successful
	271	* else -1
	272	*/
	273	__BEGIN_DECLS
	274	int bdevsw_isfree __P((int));
	275	int bdevsw_add __P((int, struct bdevsw *));
	276	int bdevsw_remove __P((int, struct bdevsw *));
	277	int cdevsw_isfree __P((int));
	278	int cdevsw_add __P((int, struct cdevsw *));
	279	int cdevsw_remove __P((int, struct cdevsw *));
	280	__END_DECLS
9bccf70c A	281	#endif /* KERNEL */
	282
	283	#endif /* __APPLE_API_UNSTABLE */
1c79356b A	284
1c79356b A	285	#endif /* _SYS_CONF_H_ */