/* * 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, 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_ */