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

/*
 * Copyright (c) 2000-2012 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) 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>
#include <sys/queue.h>
#include <stdint.h>

/*
 * Definitions of device driver entry switches
 */

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

/*
 * Types for d_type.
 * These are returned by ioctl FIODTYPE
 */
#define D_TAPE  1
#define D_DISK  2
#define D_TTY   3

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

typedef struct tty *d_devtotty_t(dev_t dev);

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

#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

__BEGIN_DECLS
int             enodev(void);
void    enodev_strat(void);
__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_select              ((select_fcn_t *)&enodev)

/* For source backward compatibility only! */
#define eno_getc                ((void *)&enodev)
#define eno_putc                ((void *)&enodev)

/*
 * 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;
};


d_devtotty_t    nodevtotty;
d_write_t       nowrite;

#ifdef KERNEL_PRIVATE
extern struct bdevsw bdevsw[];
extern int (*bootcache_contains_block)(dev_t device, u_int64_t blkno);
#endif /* KERNEL_PRIVATE */

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


/*
 * 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;
	void                    *d_reserved_1;
	void                    *d_reserved_2;
	int                     d_type;
};

#ifdef BSD_KERNEL_PRIVATE

extern uint64_t cdevsw_flags[];
#define CDEVSW_SELECT_KQUEUE 0x01
#define CDEVSW_USE_OFFSET    0x02
#define CDEVSW_IS_PTC        0x04
#define CDEVSW_IS_PTS        0x08

struct thread;

typedef struct devsw_lock {
	TAILQ_ENTRY(devsw_lock)         dl_list;
	struct thread                   *dl_thread;
	dev_t                           dl_dev;
	int                             dl_mode;
} *devsw_lock_t;

#endif /* BSD_KERNEL_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 */

#ifdef  KERNEL_PRIVATE
typedef int  l_open_t (dev_t dev, struct tty *tp);
typedef int  l_close_t(struct tty *tp, int flags);
typedef int  l_read_t (struct tty *tp, struct uio *uio, int flag);
typedef int  l_write_t(struct tty *tp, struct uio *uio, int flag);
typedef int  l_ioctl_t(struct tty *tp, u_long cmd, caddr_t data, int flag,
    struct proc *p);
typedef int  l_rint_t (int c, struct tty *tp);
typedef void l_start_t(struct tty *tp);
typedef int  l_modem_t(struct tty *tp, int flag);

/*
 * Line discipline switch table
 */
struct linesw {
	l_open_t        *l_open;
	l_close_t       *l_close;
	l_read_t        *l_read;
	l_write_t       *l_write;
	l_ioctl_t       *l_ioctl;
	l_rint_t        *l_rint;
	l_start_t       *l_start;
	l_modem_t       *l_modem;
};


extern struct linesw linesw[];
extern const int nlinesw;

int ldisc_register(int, struct linesw *);
void ldisc_deregister(int);
#define LDISC_LOAD      -1              /* Loadable line discipline */

#endif /* KERNEL_PRIVATE */

#ifdef BSD_KERNEL_PRIVATE
/*
 * 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 */

extern struct swdevt swdevt[];

#endif /* BSD_KERNEL_PRIVATE */


#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
#ifdef KERNEL_PRIVATE
void devsw_init(void);
extern struct cdevsw cdevsw[];
extern int cdevsw_setkqueueok(int, struct cdevsw*, int);
#endif /* KERNEL_PRIVATE */

#ifdef BSD_KERNEL_PRIVATE
extern void devsw_lock(dev_t, int);
extern void devsw_unlock(dev_t, int);
#endif /* BSD_KERNEL_PRIVATE */

int  bdevsw_isfree(int);
int  bdevsw_add(int, struct bdevsw *);
int  bdevsw_remove(int, struct bdevsw *);
int  cdevsw_isfree(int);
int  cdevsw_add(int, struct cdevsw *);
int  cdevsw_add_with_bdev(int index, struct cdevsw * csw, int bdev);
int  cdevsw_remove(int, struct cdevsw *);
int  isdisk(dev_t, int);
__END_DECLS
#endif /* KERNEL */

#endif /* _SYS_CONF_H_ */
Commit	Line	Data
1c79356b	1	/*
316670eb	2	* Copyright (c) 2000-2012 Apple Computer, Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
0a7de745	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
0a7de745	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
2d21ac55 A	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
0a7de745	17	*
2d21ac55 A	18	* The Original Code and all software distributed under the License are
2d21ac55 A	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
0a7de745	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	29	/*-
	30	* Copyright (c) 1990, 1993
	31	* The Regents of the University of California. All rights reserved.
	32	* (c) UNIX System Laboratories, Inc.
	33	* All or some portions of this file are derived from material licensed
	34	* to the University of California by American Telephone and Telegraph
	35	* Co. or Unix System Laboratories, Inc. and are reproduced herein with
	36	* the permission of UNIX System Laboratories, Inc.
	37	*
	38	* Redistribution and use in source and binary forms, with or without
	39	* modification, are permitted provided that the following conditions
	40	* are met:
	41	* 1. Redistributions of source code must retain the above copyright
	42	* notice, this list of conditions and the following disclaimer.
	43	* 2. Redistributions in binary form must reproduce the above copyright
	44	* notice, this list of conditions and the following disclaimer in the
	45	* documentation and/or other materials provided with the distribution.
	46	* 3. All advertising materials mentioning features or use of this software
	47	* must display the following acknowledgement:
	48	* This product includes software developed by the University of
	49	* California, Berkeley and its contributors.
	50	* 4. Neither the name of the University nor the names of its contributors
	51	* may be used to endorse or promote products derived from this software
	52	* without specific prior written permission.
	53	*
	54	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	55	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	56	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	57	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	58	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	59	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	60	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	61	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	62	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	63	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	64	* SUCH DAMAGE.
	65	*
	66	* @(#)conf.h 8.5 (Berkeley) 1/9/95
	67	*/
	68
	69	#ifndef _SYS_CONF_H_
	70	#define _SYS_CONF_H_ 1
	71
9bccf70c	72	#include <sys/appleapiopts.h>
55e303ae	73	#include <sys/cdefs.h>
6d2010ae A	74	#include <sys/queue.h>
6d2010ae A	75	#include <stdint.h>
9bccf70c	76
1c79356b A	77	/*
	78	* Definitions of device driver entry switches
	79	*/
	80
	81	struct buf;
	82	struct proc;
	83	struct tty;
	84	struct uio;
	85	struct vnode;
	86
91447636 A	87	/*
	88	* Types for d_type.
	89	* These are returned by ioctl FIODTYPE
	90	*/
0a7de745 A	91	#define D_TAPE 1
	92	#define D_DISK 2
	93	#define D_TTY 3
91447636 A	94
91447636 A	95	#ifdef KERNEL
0a7de745	96	/*
1c79356b A	97	* Device switch function types.
1c79356b A	98	*/
91447636	99	typedef int open_close_fcn_t(dev_t dev, int flags, int devtype,
0a7de745	100	struct proc *p);
91447636 A	101
	102	typedef struct tty *d_devtotty_t(dev_t dev);
	103
0a7de745	104	typedef void strategy_fcn_t(struct buf *bp);
91447636	105	typedef int ioctl_fcn_t(dev_t dev, u_long cmd, caddr_t data,
0a7de745	106	int fflag, struct proc *p);
91447636	107	typedef int dump_fcn_t(void); /* parameters vary by architecture */
0a7de745	108	typedef int psize_fcn_t(dev_t dev);
91447636	109	typedef int read_write_fcn_t(dev_t dev, struct uio *uio, int ioflag);
0a7de745 A	110	typedef int stop_fcn_t(struct tty *tp, int rw);
	111	typedef int reset_fcn_t(int uban);
	112	typedef int select_fcn_t(dev_t dev, int which, void * wql, struct proc *p);
	113	typedef int mmap_fcn_t(void);
	114
	115	#define d_open_t open_close_fcn_t
	116	#define d_close_t open_close_fcn_t
	117	#define d_read_t read_write_fcn_t
	118	#define d_write_t read_write_fcn_t
	119	#define d_ioctl_t ioctl_fcn_t
	120	#define d_stop_t stop_fcn_t
	121	#define d_reset_t reset_fcn_t
	122	#define d_select_t select_fcn_t
	123	#define d_mmap_t mmap_fcn_t
	124	#define d_strategy_t strategy_fcn_t
1c79356b A	125
1c79356b A	126	__BEGIN_DECLS
0a7de745 A	127	int enodev(void);
0a7de745 A	128	void enodev_strat(void);
1c79356b A	129	__END_DECLS
	130
	131	/*
	132	* Versions of enodev() pointer, cast to appropriate function type. For use
	133	* in empty devsw slots.
	134	*/
0a7de745 A	135	#define eno_opcl ((open_close_fcn_t *)&enodev)
	136	#define eno_strat ((strategy_fcn_t *)&enodev_strat)
	137	#define eno_ioctl ((ioctl_fcn_t *)&enodev)
	138	#define eno_dump ((dump_fcn_t *)&enodev)
	139	#define eno_psize ((psize_fcn_t *)&enodev)
	140	#define eno_rdwrt ((read_write_fcn_t *)&enodev)
	141	#define eno_stop ((stop_fcn_t *)&enodev)
	142	#define eno_reset ((reset_fcn_t *)&enodev)
	143	#define eno_mmap ((mmap_fcn_t *)&enodev)
	144	#define eno_select ((select_fcn_t *)&enodev)
1c79356b	145
b0d623f7	146	/* For source backward compatibility only! */
0a7de745 A	147	#define eno_getc ((void *)&enodev)
0a7de745 A	148	#define eno_putc ((void *)&enodev)
1c79356b A	149
	150	/*
	151	* Block device switch table
	152	*/
	153	struct bdevsw {
0a7de745 A	154	open_close_fcn_t *d_open;
	155	open_close_fcn_t *d_close;
	156	strategy_fcn_t *d_strategy;
	157	ioctl_fcn_t *d_ioctl;
	158	dump_fcn_t *d_dump;
	159	psize_fcn_t *d_psize;
	160	int d_type;
1c79356b A	161	};
1c79356b A	162
1c79356b A	163
1c79356b A	164	d_devtotty_t nodevtotty;
0a7de745	165	d_write_t nowrite;
1c79356b	166
91447636	167	#ifdef KERNEL_PRIVATE
1c79356b	168	extern struct bdevsw bdevsw[];
316670eb	169	extern int (*bootcache_contains_block)(dev_t device, u_int64_t blkno);
91447636	170	#endif /* KERNEL_PRIVATE */
1c79356b A	171
	172	/*
	173	* Contents of empty bdevsw slot.
	174	*/
0a7de745 A	175	#define NO_BDEVICE \
	176	{ eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
	177	eno_dump, eno_psize, 0 }
	178
1c79356b A	179
	180	/*
	181	* Character device switch table
	182	*/
	183	struct cdevsw {
0a7de745 A	184	open_close_fcn_t *d_open;
	185	open_close_fcn_t *d_close;
	186	read_write_fcn_t *d_read;
	187	read_write_fcn_t *d_write;
	188	ioctl_fcn_t *d_ioctl;
	189	stop_fcn_t *d_stop;
	190	reset_fcn_t *d_reset;
	191	struct tty **d_ttys;
	192	select_fcn_t *d_select;
	193	mmap_fcn_t *d_mmap;
	194	strategy_fcn_t *d_strategy;
	195	void *d_reserved_1;
	196	void *d_reserved_2;
	197	int d_type;
1c79356b A	198	};
1c79356b A	199
6d2010ae	200	#ifdef BSD_KERNEL_PRIVATE
6d2010ae A	201
6d2010ae A	202	extern uint64_t cdevsw_flags[];
5ba3f43e A	203	#define CDEVSW_SELECT_KQUEUE 0x01
	204	#define CDEVSW_USE_OFFSET 0x02
	205	#define CDEVSW_IS_PTC 0x04
	206	#define CDEVSW_IS_PTS 0x08
6d2010ae A	207
	208	struct thread;
	209
	210	typedef struct devsw_lock {
0a7de745 A	211	TAILQ_ENTRY(devsw_lock) dl_list;
	212	struct thread *dl_thread;
	213	dev_t dl_dev;
	214	int dl_mode;
6d2010ae A	215	} *devsw_lock_t;
	216
	217	#endif /* BSD_KERNEL_PRIVATE */
1c79356b	218
1c79356b A	219
	220	/*
	221	* Contents of empty cdevsw slot.
	222	*/
	223
0a7de745 A	224	#define NO_CDEVICE \
	225	{ \
	226	eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
	227	eno_ioctl, eno_stop, eno_reset, 0, \
	228	(select_fcn_t *)seltrue, eno_mmap, eno_strat, eno_getc, \
	229	eno_putc, 0 \
1c79356b	230	}
0a7de745	231
9bccf70c	232	#endif /* KERNEL */
0a7de745	233
91447636 A	234	#ifdef KERNEL_PRIVATE
	235	typedef int l_open_t (dev_t dev, struct tty *tp);
	236	typedef int l_close_t(struct tty *tp, int flags);
	237	typedef int l_read_t (struct tty tp, struct uio uio, int flag);
	238	typedef int l_write_t(struct tty tp, struct uio uio, int flag);
	239	typedef int l_ioctl_t(struct tty *tp, u_long cmd, caddr_t data, int flag,
0a7de745	240	struct proc *p);
91447636 A	241	typedef int l_rint_t (int c, struct tty *tp);
	242	typedef void l_start_t(struct tty *tp);
	243	typedef int l_modem_t(struct tty *tp, int flag);
	244
1c79356b A	245	/*
	246	* Line discipline switch table
	247	*/
	248	struct linesw {
0a7de745 A	249	l_open_t *l_open;
	250	l_close_t *l_close;
	251	l_read_t *l_read;
	252	l_write_t *l_write;
	253	l_ioctl_t *l_ioctl;
	254	l_rint_t *l_rint;
	255	l_start_t *l_start;
	256	l_modem_t *l_modem;
1c79356b A	257	};
1c79356b A	258
9bccf70c	259
1c79356b	260	extern struct linesw linesw[];
fe8ab488	261	extern const int nlinesw;
0a7de745 A	262
0a7de745 A	263	int ldisc_register(int, struct linesw *);
91447636	264	void ldisc_deregister(int);
1c79356b	265	#define LDISC_LOAD -1 /* Loadable line discipline */
1c79356b	266
91447636	267	#endif /* KERNEL_PRIVATE */
9bccf70c	268
91447636	269	#ifdef BSD_KERNEL_PRIVATE
1c79356b A	270	/*
	271	* Swap device table
	272	*/
	273	struct swdevt {
0a7de745 A	274	dev_t sw_dev;
	275	int sw_flags;
	276	int sw_nblks;
	277	struct vnode *sw_vp;
1c79356b	278	};
0a7de745 A	279	#define SW_FREED 0x01
	280	#define SW_SEQUENTIAL 0x02
	281	#define sw_freed sw_flags /* XXX compat */
1c79356b	282
1c79356b	283	extern struct swdevt swdevt[];
9bccf70c	284
91447636	285	#endif /* BSD_KERNEL_PRIVATE */
9bccf70c	286
1c79356b A	287
	288	#ifdef KERNEL
	289	/*
	290	* ***_free finds free slot;
	291	* ***_add adds entries to the devsw table
	292	* If int arg is -1; finds a free slot
	293	* Returns the major number if successful
	294	* else -1
	295	*/
	296	__BEGIN_DECLS
6d2010ae	297	#ifdef KERNEL_PRIVATE
39037602	298	void devsw_init(void);
6d2010ae A	299	extern struct cdevsw cdevsw[];
	300	extern int cdevsw_setkqueueok(int, struct cdevsw*, int);
	301	#endif /* KERNEL_PRIVATE */
	302
	303	#ifdef BSD_KERNEL_PRIVATE
	304	extern void devsw_lock(dev_t, int);
	305	extern void devsw_unlock(dev_t, int);
	306	#endif /* BSD_KERNEL_PRIVATE */
	307
91447636 A	308	int bdevsw_isfree(int);
	309	int bdevsw_add(int, struct bdevsw *);
	310	int bdevsw_remove(int, struct bdevsw *);
	311	int cdevsw_isfree(int);
	312	int cdevsw_add(int, struct cdevsw *);
	313	int cdevsw_add_with_bdev(int index, struct cdevsw * csw, int bdev);
	314	int cdevsw_remove(int, struct cdevsw *);
b0d623f7	315	int isdisk(dev_t, int);
1c79356b	316	__END_DECLS
9bccf70c A	317	#endif /* KERNEL */
9bccf70c A	318
1c79356b	319	#endif /* _SYS_CONF_H_ */