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- /*
- * 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_ */
-