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

/*
 * Copyright (c) 2000 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

/*
 * Definitions of device driver entry switches
 */

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

/* 
 * 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;


extern struct bdevsw bdevsw[];

/*
 * 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

extern struct cdevsw cdevsw[];

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

/*
 * 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

#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

#endif /* _SYS_CONF_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	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.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	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.
	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
66	/*
67	* Definitions of device driver entry switches
68	*/
69
70	struct buf;
71	struct proc;
72	struct tty;
73	struct uio;
74	struct vnode;
75
76	/*
77	* Device switch function types.
78	*/
79	typedef int open_close_fcn_t __P((dev_t dev, int flags, int devtype,
80	struct proc *p));
81
82	typedef struct tty *d_devtotty_t __P((dev_t dev));
83
84	typedef void strategy_fcn_t __P((struct buf *bp));
85	typedef int ioctl_fcn_t __P((dev_t dev, u_long cmd, caddr_t data,
86	int fflag, struct proc *p));
87	typedef int dump_fcn_t (); /* parameters vary by architecture */
88	typedef int psize_fcn_t __P((dev_t dev));
89	typedef int read_write_fcn_t __P((dev_t dev, struct uio *uio, int ioflag));
90	typedef int stop_fcn_t __P((struct tty *tp, int rw));
91	typedef int reset_fcn_t __P((int uban));
0b4e3aa0	92	typedef int select_fcn_t __P((dev_t dev, int which, void * wql, struct proc *p));
1c79356b A	93	typedef int mmap_fcn_t __P(());
	94	typedef int getc_fcn_t __P((dev_t dev));
	95	typedef int putc_fcn_t __P((dev_t dev, char c));
	96	typedef int d_poll_t __P((dev_t dev, int events, struct proc *p));
	97
	98	#define d_open_t open_close_fcn_t
	99	#define d_close_t open_close_fcn_t
	100	#define d_read_t read_write_fcn_t
	101	#define d_write_t read_write_fcn_t
	102	#define d_ioctl_t ioctl_fcn_t
	103
	104	__BEGIN_DECLS
	105	int enodev (); /* avoid actual prototype for multiple use */
	106	void enodev_strat();
	107	__END_DECLS
	108
	109	/*
	110	* Versions of enodev() pointer, cast to appropriate function type. For use
	111	* in empty devsw slots.
	112	*/
	113	#define eno_opcl ((open_close_fcn_t *)&enodev)
	114	#define eno_strat ((strategy_fcn_t *)&enodev_strat)
	115	#define eno_ioctl ((ioctl_fcn_t *)&enodev)
	116	#define eno_dump ((dump_fcn_t *)&enodev)
	117	#define eno_psize ((psize_fcn_t *)&enodev)
	118	#define eno_rdwrt ((read_write_fcn_t *)&enodev)
	119	#define eno_stop ((stop_fcn_t *)&enodev)
	120	#define eno_reset ((reset_fcn_t *)&enodev)
	121	#define eno_mmap ((mmap_fcn_t *)&enodev)
	122	#define eno_getc ((getc_fcn_t *)&enodev)
	123	#define eno_putc ((putc_fcn_t *)&enodev)
	124	#define eno_select ((select_fcn_t *)&enodev)
	125
	126	/*
	127	* Types for d_type.
	128	*/
	129	#define D_TAPE 1
	130	#define D_DISK 2
	131	#define D_TTY 3
	132
	133	/*
	134	* Block device switch table
	135	*/
	136	struct bdevsw {
	137	open_close_fcn_t *d_open;
	138	open_close_fcn_t *d_close;
	139	strategy_fcn_t *d_strategy;
	140	ioctl_fcn_t *d_ioctl;
	141	dump_fcn_t *d_dump;
	142	psize_fcn_t *d_psize;
	143	int d_type;
	144	};
	145
	146	#ifdef KERNEL
	147
	148	d_devtotty_t nodevtotty;
	149	d_write_t nowrite;
	150
	151
	152	extern struct bdevsw bdevsw[];
	153
	154	/*
	155	* Contents of empty bdevsw slot.
	156	*/
157	#define NO_BDEVICE \
158	{ eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
159	eno_dump, eno_psize, 0 }
160
161	#endif /* KERNEL */
162
163	/*
164	* Character device switch table
165	*/
166	struct cdevsw {
167	open_close_fcn_t *d_open;
168	open_close_fcn_t *d_close;
169	read_write_fcn_t *d_read;
170	read_write_fcn_t *d_write;
171	ioctl_fcn_t *d_ioctl;
172	stop_fcn_t *d_stop;
173	reset_fcn_t *d_reset;
174	struct tty **d_ttys;
175	select_fcn_t *d_select;
176	mmap_fcn_t *d_mmap;
177	strategy_fcn_t *d_strategy;
178	getc_fcn_t *d_getc;
179	putc_fcn_t *d_putc;
180	int d_type;
181	};
182
183	#ifdef KERNEL
184
185	extern struct cdevsw cdevsw[];
186
187	/*
188	* Contents of empty cdevsw slot.
189	*/
190
191	#define NO_CDEVICE \
192	{ \
193	eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
194	eno_ioctl, eno_stop, eno_reset, 0, \
195	seltrue, eno_mmap, eno_strat, eno_getc, \
196	eno_putc, 0 \
197	}
198
199	#endif /* KERNEL */
200
201	/*
202	* Line discipline switch table
203	*/
204	struct linesw {
205	int (l_open) __P((dev_t dev, struct tty tp));
206	int (l_close) __P((struct tty tp, int flags));
207	int (l_read) __P((struct tty tp, struct uio *uio,
208	int flag));
209	int (l_write) __P((struct tty tp, struct uio *uio,
210	int flag));
211	int (l_ioctl) __P((struct tty tp, u_long cmd, caddr_t data,
212	int flag, struct proc *p));
213	int (l_rint) __P((int c, struct tty tp));
214	int (l_start) __P((struct tty tp));
215	int (l_modem) __P((struct tty tp, int flag));
216	};
217
218	#ifdef KERNEL
219	extern struct linesw linesw[];
220	extern int nlinesw;
221
222	int ldisc_register __P((int , struct linesw *));
223	void ldisc_deregister __P((int));
224	#define LDISC_LOAD -1 /* Loadable line discipline */
225	#endif
226
227	/*
228	* Swap device table
229	*/
230	struct swdevt {
231	dev_t sw_dev;
232	int sw_flags;
233	int sw_nblks;
234	struct vnode *sw_vp;
235	};
236	#define SW_FREED 0x01
237	#define SW_SEQUENTIAL 0x02
238	#define sw_freed sw_flags /* XXX compat */
239
240	#ifdef KERNEL
241	extern struct swdevt swdevt[];
242	#endif
243
244	#ifdef KERNEL
245	/*
246	* ***_free finds free slot;
247	* ***_add adds entries to the devsw table
248	* If int arg is -1; finds a free slot
249	* Returns the major number if successful
250	* else -1
251	*/
252	__BEGIN_DECLS
253	int bdevsw_isfree __P((int));
254	int bdevsw_add __P((int, struct bdevsw *));
255	int bdevsw_remove __P((int, struct bdevsw *));
256	int cdevsw_isfree __P((int));
257	int cdevsw_add __P((int, struct cdevsw *));
258	int cdevsw_remove __P((int, struct cdevsw *));
259	__END_DECLS
260	#endif
261
262	#endif /* _SYS_CONF_H_ */