236 lines
7.0 KiB
C
236 lines
7.0 KiB
C
/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)conf.h 8.5 (Berkeley) 1/9/95
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* $Id$
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*/
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#ifndef _SYS_CONF_H_
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#define _SYS_CONF_H_
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/*
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* Definitions of device driver entry switches
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*/
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struct buf;
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struct proc;
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struct tty;
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struct uio;
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struct vnode;
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typedef int d_open_t __P((dev_t dev, int oflags, int devtype, struct proc *p));
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typedef int d_close_t __P((dev_t dev, int fflag, int devtype, struct proc *p));
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typedef void d_strategy_t __P((struct buf *bp));
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typedef int d_ioctl_t __P((dev_t dev, int cmd, caddr_t data,
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int fflag, struct proc *p));
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typedef int d_dump_t __P((dev_t dev));
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typedef int d_psize_t __P((dev_t dev));
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typedef int d_read_t __P((dev_t dev, struct uio *uio, int ioflag));
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typedef int d_write_t __P((dev_t dev, struct uio *uio, int ioflag));
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typedef void d_stop_t __P((struct tty *tp, int rw));
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typedef int d_reset_t __P((dev_t dev));
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typedef struct tty *d_devtotty_t __P((dev_t dev));
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typedef int d_select_t __P((dev_t dev, int which, struct proc *p));
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typedef int d_mmap_t __P((dev_t dev, int offset, int nprot));
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typedef int l_open_t __P((dev_t dev, struct tty *tp));
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typedef int l_close_t __P((struct tty *tp, int flag));
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typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag));
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typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag));
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typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data,
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int flag, struct proc *p));
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typedef int l_rint_t __P((int c, struct tty *tp));
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typedef int l_start_t __P((struct tty *tp));
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typedef int l_modem_t __P((struct tty *tp, int flag));
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/*
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* Types for d_type.
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*/
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#define D_TAPE 1
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#define D_DISK 2
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#define D_TTY 3
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/*
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* Block device switch table
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*/
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struct bdevsw {
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d_open_t *d_open;
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d_close_t *d_close;
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d_strategy_t *d_strategy;
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d_ioctl_t *d_ioctl;
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d_dump_t *d_dump;
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d_psize_t *d_psize;
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int d_flags;
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char *d_name; /* name of the driver e.g. audio */
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struct cdevsw *d_cdev; /* cross pointer to the cdev */
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int d_maj; /* the major number we were assigned */
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};
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#ifdef KERNEL
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extern struct bdevsw *bdevsw[];
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#endif
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/*
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* Character device switch table
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*/
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struct cdevsw {
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d_open_t *d_open;
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d_close_t *d_close;
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d_read_t *d_read;
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d_write_t *d_write;
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d_ioctl_t *d_ioctl;
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d_stop_t *d_stop;
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d_reset_t *d_reset; /* XXX not used */
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d_devtotty_t *d_devtotty;
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d_select_t *d_select;
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d_mmap_t *d_mmap;
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d_strategy_t *d_strategy;
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char *d_name; /* see above */
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struct bdevsw *d_bdev;
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int d_maj;
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};
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#ifdef KERNEL
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extern struct cdevsw *cdevsw[];
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#endif
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/*
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* Line discipline switch table
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*/
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struct linesw {
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l_open_t *l_open;
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l_close_t *l_close;
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l_read_t *l_read;
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l_write_t *l_write;
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l_ioctl_t *l_ioctl;
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l_rint_t *l_rint;
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l_start_t *l_start;
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l_modem_t *l_modem;
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};
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#ifdef KERNEL
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extern struct linesw linesw[];
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extern int nlinesw;
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int ldisc_register __P((int , struct linesw *));
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void ldisc_deregister __P((int));
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#define LDISC_LOAD -1 /* Loadable line discipline */
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#endif
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/*
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* Swap device table
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*/
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struct swdevt {
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dev_t sw_dev;
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int sw_flags;
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int sw_nblks;
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struct vnode *sw_vp;
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};
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#define SW_FREED 0x01
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#define SW_SEQUENTIAL 0x02
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#define sw_freed sw_flags /* XXX compat */
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#ifdef KERNEL
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d_open_t noopen;
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d_close_t noclose;
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d_read_t noread;
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d_write_t nowrite;
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d_ioctl_t noioctl;
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d_stop_t nostop;
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d_reset_t noreset;
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d_devtotty_t nodevtotty;
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d_select_t noselect;
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d_mmap_t nommap;
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/* Bogus defines for compatibility. */
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#define noioc noioctl
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#define nostrat nostrategy
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#define zerosize nopsize
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/*
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* XXX d_strategy seems to be unused for cdevs that aren't associated with
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* bdevs and called without checking for it being non-NULL for bdevs.
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*/
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#define nostrategy ((d_strategy_t *)NULL)
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d_dump_t nodump;
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/*
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* nopsize is little used, so not worth having dummy functions for.
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*/
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#define nopsize ((d_psize_t *)NULL)
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d_open_t nullopen;
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d_close_t nullclose;
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#define nullstop nostop /* one void return is as good as another */
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#define nullreset noreset /* one unused function is as good as another */
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d_open_t nxopen;
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d_close_t nxclose;
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d_read_t nxread;
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d_write_t nxwrite;
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d_ioctl_t nxioctl;
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#define nxstop nostop /* one void return is as good as another */
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#define nxreset noreset /* one unused function is as good as another */
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#define nxdevtotty nodevtotty /* one NULL return is as good as another */
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d_select_t nxselect;
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#define nxmmap nommap /* one -1 return is as good as another */
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#define nxstrategy nostrategy /* one NULL value is as good as another */
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d_dump_t nxdump;
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#define nxpsize nopsize /* one NULL value is as good as another */
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d_read_t rawread;
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d_write_t rawwrite;
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l_read_t l_noread;
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l_write_t l_nowrite;
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int bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw **old));
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int cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw **old));
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void cdevsw_make __P((struct bdevsw *from));
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void bdevsw_add_generic __P((int bdev, int cdev, struct bdevsw *bdevsw));
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dev_t chrtoblk __P((dev_t dev));
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int isdisk __P((dev_t dev, int type));
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int iskmemdev __P((dev_t dev));
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int iszerodev __P((dev_t dev));
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void setconf __P((void));
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#endif /* KERNEL */
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#include <machine/conf.h>
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#endif /* !_SYS_CONF_H_ */
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