conf.h revision 12731
1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)conf.h 8.3 (Berkeley) 1/21/94 39 * $Id: conf.h,v 1.26 1995/12/10 13:45:30 phk Exp $ 40 */ 41 42#ifndef _SYS_CONF_H_ 43#define _SYS_CONF_H_ 44 45/* 46 * Definitions of device driver entry switches 47 */ 48 49struct buf; 50struct proc; 51struct tty; 52struct uio; 53struct vnode; 54 55typedef int d_open_t __P((dev_t, int, int, struct proc *)); 56typedef int d_close_t __P((dev_t, int, int, struct proc *)); 57typedef void d_strategy_t __P((struct buf *)); 58typedef int d_ioctl_t __P((dev_t, int, caddr_t, int, struct proc *)); 59typedef int d_dump_t __P((dev_t)); 60typedef int d_psize_t __P((dev_t)); 61 62typedef int d_read_t __P((dev_t, struct uio *, int)); 63typedef int d_write_t __P((dev_t, struct uio *, int)); 64typedef void d_stop_t __P((struct tty *, int)); 65typedef int d_reset_t __P((dev_t)); 66typedef struct tty *d_devtotty_t __P((dev_t)); 67typedef int d_select_t __P((dev_t, int, struct proc *)); 68typedef int d_mmap_t __P((dev_t, int, int)); 69 70typedef int l_open_t __P((dev_t dev, struct tty *tp)); 71typedef int l_close_t __P((struct tty *tp, int flag)); 72typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); 73typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); 74typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data, int flag, 75 struct proc *p)); 76typedef int l_rint_t __P((int c, struct tty *tp)); 77typedef int l_start_t __P((struct tty *tp)); 78typedef int l_modem_t __P((struct tty *tp, int flag)); 79 80struct bdevsw { 81 d_open_t *d_open; 82 d_close_t *d_close; 83 d_strategy_t *d_strategy; 84 d_ioctl_t *d_ioctl; 85 d_dump_t *d_dump; 86 d_psize_t *d_psize; 87 int d_flags; 88 char *d_name; /* name of the driver e.g. audio */ 89 struct cdevsw *d_cdev; /* cross pointer to the cdev */ 90 int d_maj; /* the major number we were assigned */ 91}; 92 93#ifdef KERNEL 94extern struct bdevsw bdevsw[]; 95#endif 96 97struct cdevsw { 98 d_open_t *d_open; 99 d_close_t *d_close; 100 d_read_t *d_read; 101 d_write_t *d_write; 102 d_ioctl_t *d_ioctl; 103 d_stop_t *d_stop; 104 d_reset_t *d_reset; /* XXX not used */ 105 d_devtotty_t *d_devtotty; 106 d_select_t *d_select; 107 d_mmap_t *d_mmap; 108 d_strategy_t *d_strategy; 109 char *d_name; /* see above */ 110 struct bdevsw *d_bdev; 111 int d_maj; 112}; 113 114#ifdef KERNEL 115extern struct cdevsw cdevsw[]; 116#endif 117 118struct linesw { 119 l_open_t *l_open; 120 l_close_t *l_close; 121 l_read_t *l_read; 122 l_write_t *l_write; 123 l_ioctl_t *l_ioctl; 124 l_rint_t *l_rint; 125 l_start_t *l_start; 126 l_modem_t *l_modem; 127}; 128 129#ifdef KERNEL 130extern struct linesw linesw[]; 131extern int nlinesw; 132 133int ldisc_register __P((int , struct linesw *)); 134void ldisc_deregister __P((int)); 135#define LDISC_LOAD -1 /* Loadable line discipline */ 136#endif 137 138struct swdevt { 139 dev_t sw_dev; 140 int sw_flags; 141 int sw_nblks; 142 struct vnode *sw_vp; 143}; 144#define SW_FREED 0x01 145#define SW_SEQUENTIAL 0x02 146#define sw_freed sw_flags /* XXX compat */ 147 148#ifdef KERNEL 149d_open_t noopen; 150d_close_t noclose; 151d_read_t noread; 152d_write_t nowrite; 153d_ioctl_t noioctl; 154d_stop_t nostop; 155d_reset_t noreset; 156d_devtotty_t nodevtotty; 157d_select_t noselect; 158d_mmap_t nommap; 159 160/* Bogus defines for compatibility. */ 161#define noioc noioctl 162#define nostrat nostrategy 163#define zerosize nopsize 164/* 165 * XXX d_strategy seems to be unused for cdevs that aren't associated with 166 * bdevs and called without checking for it being non-NULL for bdevs. 167 */ 168#define nostrategy ((d_strategy_t *)NULL) 169 170d_dump_t nodump; 171 172/* 173 * nopsize is little used, so not worth having dummy functions for. 174 */ 175#define nopsize ((d_psize_t *)NULL) 176 177d_open_t nullopen; 178d_close_t nullclose; 179#define nullstop nostop /* one void return is as good as another */ 180#define nullreset noreset /* one unused function is as good as another */ 181 182d_open_t nxopen; 183d_close_t nxclose; 184d_read_t nxread; 185d_write_t nxwrite; 186d_ioctl_t nxioctl; 187#define nxstop nostop /* one void return is as good as another */ 188#define nxreset noreset /* one unused function is as good as another */ 189#define nxdevtotty nodevtotty /* one NULL return is as good as another */ 190d_select_t nxselect; 191#define nxmmap nommap /* one -1 return is as good as another */ 192#define nxstrategy nostrategy /* one NULL value is as good as another */ 193d_dump_t nxdump; 194#define nxpsize nopsize /* one NULL value is as good as another */ 195 196d_read_t rawread; 197d_write_t rawwrite; 198 199l_read_t l_noread; 200l_write_t l_nowrite; 201 202int bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw *old)); 203int cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw *old)); 204dev_t chrtoblk __P((dev_t dev)); 205int getmajorbyname __P((const char *name)); 206int isdisk __P((dev_t dev, int type)); 207int iskmemdev __P((dev_t dev)); 208int iszerodev __P((dev_t dev)); 209int register_cdev __P((const char *name, const struct cdevsw *cdp)); 210void setconf __P((void)); 211int unregister_cdev __P((const char *name, const struct cdevsw *cdp)); 212#endif /* KERNEL */ 213 214#include <machine/conf.h> 215 216#endif /* !_SYS_CONF_H_ */ 217