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

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_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>

/*
 * 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

__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,	  	\
	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	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	26	/*-
	27	* Copyright (c) 1990, 1993
	28	* The Regents of the University of California. All rights reserved.
	29	* (c) UNIX System Laboratories, Inc.
	30	* All or some portions of this file are derived from material licensed
	31	* to the University of California by American Telephone and Telegraph
	32	* Co. or Unix System Laboratories, Inc. and are reproduced herein with
	33	* the permission of UNIX System Laboratories, Inc.
	34	*
	35	* Redistribution and use in source and binary forms, with or without
	36	* modification, are permitted provided that the following conditions
	37	* are met:
	38	* 1. Redistributions of source code must retain the above copyright
	39	* notice, this list of conditions and the following disclaimer.
	40	* 2. Redistributions in binary form must reproduce the above copyright
	41	* notice, this list of conditions and the following disclaimer in the
	42	* documentation and/or other materials provided with the distribution.
	43	* 3. All advertising materials mentioning features or use of this software
	44	* must display the following acknowledgement:
	45	* This product includes software developed by the University of
	46	* California, Berkeley and its contributors.
	47	* 4. Neither the name of the University nor the names of its contributors
	48	* may be used to endorse or promote products derived from this software
	49	* without specific prior written permission.
	50	*
	51	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	52	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	53	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	54	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	55	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	56	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	57	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	58	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	59	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	60	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	61	* SUCH DAMAGE.
	62	*
	63	* @(#)conf.h 8.5 (Berkeley) 1/9/95
	64	*/
	65
	66	#ifndef _SYS_CONF_H_
	67	#define _SYS_CONF_H_ 1
	68
9bccf70c A	69	#include <sys/appleapiopts.h>
9bccf70c A	70
1c79356b A	71	/*
	72	* Definitions of device driver entry switches
	73	*/
	74
	75	struct buf;
	76	struct proc;
	77	struct tty;
	78	struct uio;
	79	struct vnode;
	80
9bccf70c	81	#ifdef __APPLE_API_UNSTABLE
1c79356b A	82	/*
	83	* Device switch function types.
	84	*/
	85	typedef int open_close_fcn_t __P((dev_t dev, int flags, int devtype,
	86	struct proc *p));
	87
	88	typedef struct tty *d_devtotty_t __P((dev_t dev));
	89
	90	typedef void strategy_fcn_t __P((struct buf *bp));
	91	typedef int ioctl_fcn_t __P((dev_t dev, u_long cmd, caddr_t data,
	92	int fflag, struct proc *p));
	93	typedef int dump_fcn_t (); /* parameters vary by architecture */
	94	typedef int psize_fcn_t __P((dev_t dev));
	95	typedef int read_write_fcn_t __P((dev_t dev, struct uio *uio, int ioflag));
	96	typedef int stop_fcn_t __P((struct tty *tp, int rw));
	97	typedef int reset_fcn_t __P((int uban));
0b4e3aa0	98	typedef int select_fcn_t __P((dev_t dev, int which, void * wql, struct proc *p));
1c79356b A	99	typedef int mmap_fcn_t __P(());
	100	typedef int getc_fcn_t __P((dev_t dev));
	101	typedef int putc_fcn_t __P((dev_t dev, char c));
	102	typedef int d_poll_t __P((dev_t dev, int events, struct proc *p));
	103
	104	#define d_open_t open_close_fcn_t
	105	#define d_close_t open_close_fcn_t
	106	#define d_read_t read_write_fcn_t
	107	#define d_write_t read_write_fcn_t
	108	#define d_ioctl_t ioctl_fcn_t
	109
	110	__BEGIN_DECLS
	111	int enodev (); /* avoid actual prototype for multiple use */
	112	void enodev_strat();
	113	__END_DECLS
	114
	115	/*
	116	* Versions of enodev() pointer, cast to appropriate function type. For use
	117	* in empty devsw slots.
	118	*/
	119	#define eno_opcl ((open_close_fcn_t *)&enodev)
	120	#define eno_strat ((strategy_fcn_t *)&enodev_strat)
	121	#define eno_ioctl ((ioctl_fcn_t *)&enodev)
	122	#define eno_dump ((dump_fcn_t *)&enodev)
	123	#define eno_psize ((psize_fcn_t *)&enodev)
	124	#define eno_rdwrt ((read_write_fcn_t *)&enodev)
	125	#define eno_stop ((stop_fcn_t *)&enodev)
	126	#define eno_reset ((reset_fcn_t *)&enodev)
	127	#define eno_mmap ((mmap_fcn_t *)&enodev)
	128	#define eno_getc ((getc_fcn_t *)&enodev)
	129	#define eno_putc ((putc_fcn_t *)&enodev)
	130	#define eno_select ((select_fcn_t *)&enodev)
	131
	132	/*
	133	* Types for d_type.
	134	*/
	135	#define D_TAPE 1
	136	#define D_DISK 2
	137	#define D_TTY 3
	138
	139	/*
	140	* Block device switch table
	141	*/
	142	struct bdevsw {
	143	open_close_fcn_t *d_open;
	144	open_close_fcn_t *d_close;
	145	strategy_fcn_t *d_strategy;
	146	ioctl_fcn_t *d_ioctl;
	147	dump_fcn_t *d_dump;
	148	psize_fcn_t *d_psize;
	149	int d_type;
	150	};
	151
9bccf70c	152	#ifdef KERNEL
1c79356b A	153
	154	d_devtotty_t nodevtotty;
	155	d_write_t nowrite;
	156
9bccf70c	157	#ifdef __APPLE_API_PRIVATE
1c79356b	158	extern struct bdevsw bdevsw[];
9bccf70c	159	#endif /* __APPLE_API_PRIVATE */
1c79356b A	160
	161	/*
	162	* Contents of empty bdevsw slot.
	163	*/
	164	#define NO_BDEVICE \
	165	{ eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
	166	eno_dump, eno_psize, 0 }
	167
9bccf70c	168	#endif /* KERNEL */
1c79356b A	169
	170	/*
	171	* Character device switch table
	172	*/
	173	struct cdevsw {
	174	open_close_fcn_t *d_open;
	175	open_close_fcn_t *d_close;
	176	read_write_fcn_t *d_read;
	177	read_write_fcn_t *d_write;
	178	ioctl_fcn_t *d_ioctl;
	179	stop_fcn_t *d_stop;
	180	reset_fcn_t *d_reset;
	181	struct tty **d_ttys;
	182	select_fcn_t *d_select;
	183	mmap_fcn_t *d_mmap;
	184	strategy_fcn_t *d_strategy;
	185	getc_fcn_t *d_getc;
	186	putc_fcn_t *d_putc;
	187	int d_type;
	188	};
	189
	190	#ifdef KERNEL
	191
9bccf70c	192	#ifdef __APPLE_API_PRIVATE
1c79356b	193	extern struct cdevsw cdevsw[];
9bccf70c	194	#endif /* __APPLE_API_PRIVATE */
1c79356b A	195
	196	/*
	197	* Contents of empty cdevsw slot.
	198	*/
	199
	200	#define NO_CDEVICE \
	201	{ \
	202	eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
	203	eno_ioctl, eno_stop, eno_reset, 0, \
	204	seltrue, eno_mmap, eno_strat, eno_getc, \
	205	eno_putc, 0 \
	206	}
9bccf70c	207	#endif /* KERNEL */
1c79356b	208
1c79356b A	209	/*
	210	* Line discipline switch table
	211	*/
	212	struct linesw {
	213	int (l_open) __P((dev_t dev, struct tty tp));
	214	int (l_close) __P((struct tty tp, int flags));
	215	int (l_read) __P((struct tty tp, struct uio *uio,
	216	int flag));
	217	int (l_write) __P((struct tty tp, struct uio *uio,
	218	int flag));
	219	int (l_ioctl) __P((struct tty tp, u_long cmd, caddr_t data,
	220	int flag, struct proc *p));
	221	int (l_rint) __P((int c, struct tty tp));
	222	int (l_start) __P((struct tty tp));
	223	int (l_modem) __P((struct tty tp, int flag));
	224	};
	225
	226	#ifdef KERNEL
9bccf70c A	227
9bccf70c A	228	#ifdef __APPLE_API_PRIVATE
1c79356b A	229	extern struct linesw linesw[];
1c79356b A	230	extern int nlinesw;
9bccf70c	231	#endif /* __APPLE_API_PRIVATE */
1c79356b A	232
	233	int ldisc_register __P((int , struct linesw *));
	234	void ldisc_deregister __P((int));
	235	#define LDISC_LOAD -1 /* Loadable line discipline */
1c79356b	236
9bccf70c A	237	#endif /* KERNEL */
	238
	239	#ifdef __APPLE_API_OBSOLETE
1c79356b A	240	/*
	241	* Swap device table
	242	*/
	243	struct swdevt {
	244	dev_t sw_dev;
	245	int sw_flags;
	246	int sw_nblks;
	247	struct vnode *sw_vp;
	248	};
	249	#define SW_FREED 0x01
	250	#define SW_SEQUENTIAL 0x02
	251	#define sw_freed sw_flags /* XXX compat */
	252
	253	#ifdef KERNEL
	254	extern struct swdevt swdevt[];
9bccf70c A	255	#endif /* KERNEL */
	256
	257	#endif /* __APPLE_API_OBSOLETE */
	258
1c79356b A	259
	260	#ifdef KERNEL
	261	/*
	262	* ***_free finds free slot;
	263	* ***_add adds entries to the devsw table
	264	* If int arg is -1; finds a free slot
	265	* Returns the major number if successful
	266	* else -1
	267	*/
	268	__BEGIN_DECLS
	269	int bdevsw_isfree __P((int));
	270	int bdevsw_add __P((int, struct bdevsw *));
	271	int bdevsw_remove __P((int, struct bdevsw *));
	272	int cdevsw_isfree __P((int));
	273	int cdevsw_add __P((int, struct cdevsw *));
	274	int cdevsw_remove __P((int, struct cdevsw *));
	275	__END_DECLS
9bccf70c A	276	#endif /* KERNEL */
	277
	278	#endif /* __APPLE_API_UNSTABLE */
1c79356b A	279
1c79356b A	280	#endif /* _SYS_CONF_H_ */