conf.h revision 12675
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 1.24 1995/12/05 19:53:14 bde 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 void d_strategy_t __P((struct buf *)); 56typedef int d_open_t __P((dev_t, int, int, struct proc *)); 57typedef int d_close_t __P((dev_t, int, int, struct proc *)); 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)); 61typedef int d_size_t __P((dev_t)); 62 63typedef int d_read_t __P((dev_t, struct uio *, int)); 64typedef int d_write_t __P((dev_t, struct uio *, int)); 65typedef int d_rdwr_t __P((dev_t, struct uio *, int)); 66typedef void d_stop_t __P((struct tty *, int)); 67typedef int d_reset_t __P((dev_t)); 68typedef struct tty *d_devtotty_t __P((dev_t)); 69typedef int d_select_t __P((dev_t, int, struct proc *)); 70typedef int d_mmap_t __P((dev_t, int, int)); 71typedef struct tty * d_ttycv_t __P((dev_t)); 72 73typedef int l_open_t __P((dev_t dev, struct tty *tp)); 74typedef int l_close_t __P((struct tty *tp, int flag)); 75typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); 76typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); 77typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data, int flag, 78 struct proc *p)); 79typedef int l_rint_t __P((int c, struct tty *tp)); 80typedef int l_start_t __P((struct tty *tp)); 81typedef int l_modem_t __P((struct tty *tp, int flag)); 82 83struct bdevsw { 84 d_open_t *d_open; 85 d_close_t *d_close; 86 d_strategy_t *d_strategy; 87 d_ioctl_t *d_ioctl; 88 d_dump_t *d_dump; 89 d_psize_t *d_psize; 90 int d_flags; 91 char *d_name; /* name of the driver e.g. audio */ 92 struct cdevsw *d_cdev; /* cross pointer to the cdev */ 93 int d_maj; /* the major number we were assigned */ 94}; 95 96#ifdef KERNEL 97extern struct bdevsw bdevsw[]; 98#endif 99 100struct cdevsw { 101 d_open_t *d_open; 102 d_close_t *d_close; 103 d_rdwr_t *d_read; 104 d_rdwr_t *d_write; 105 d_ioctl_t *d_ioctl; 106 d_stop_t *d_stop; 107 d_reset_t *d_reset; /* XXX not used */ 108 d_ttycv_t *d_devtotty; 109 d_select_t *d_select; 110 d_mmap_t *d_mmap; 111 d_strategy_t *d_strategy; 112 char *d_name; 113 struct bdevsw *d_bdev; /* cross pointer to the bdev */ 114 int d_maj; /* the major number we were assigned */ 115}; 116 117#ifdef KERNEL 118extern struct cdevsw cdevsw[]; 119#endif 120 121struct linesw { 122 l_open_t *l_open; 123 l_close_t *l_close; 124 l_read_t *l_read; 125 l_write_t *l_write; 126 l_ioctl_t *l_ioctl; 127 l_rint_t *l_rint; 128 l_start_t *l_start; 129 l_modem_t *l_modem; 130}; 131 132#ifdef KERNEL 133extern struct linesw linesw[]; 134extern int nlinesw; 135 136int ldisc_register __P((int , struct linesw *)); 137void ldisc_deregister __P((int)); 138#define LDISC_LOAD -1 /* Loadable line discipline */ 139#endif 140 141struct swdevt { 142 dev_t sw_dev; 143 int sw_flags; 144 int sw_nblks; 145 struct vnode *sw_vp; 146}; 147#define SW_FREED 0x01 148#define SW_SEQUENTIAL 0x02 149#define sw_freed sw_flags /* XXX compat */ 150 151#ifdef KERNEL 152d_open_t noopen; 153d_close_t noclose; 154d_read_t noread; 155d_write_t nowrite; 156d_ioctl_t noioctl; 157d_stop_t nostop; 158d_reset_t noreset; 159d_devtotty_t nodevtotty; 160d_select_t noselect; 161d_mmap_t nommap; 162 163/* Bogus defines for compatibility. */ 164#define noioc noioctl 165#define nostrat nostrategy 166#define zerosize nopsize 167/* 168 * XXX d_strategy seems to be unused for cdevs that aren't associated with 169 * bdevs and called without checking for it being non-NULL for bdevs. 170 */ 171#define nostrategy ((d_strategy_t *)NULL) 172 173d_dump_t nodump; 174 175/* 176 * nopsize is little used, so not worth having dummy functions for. 177 */ 178#define nopsize ((d_psize_t *)NULL) 179 180d_open_t nullopen; 181d_close_t nullclose; 182#define nullstop nostop /* one void return is as good as another */ 183#define nullreset noreset /* one unused function is as good as another */ 184 185d_open_t nxopen; 186d_close_t nxclose; 187d_read_t nxread; 188d_write_t nxwrite; 189d_ioctl_t nxioctl; 190#define nxstop nostop /* one void return is as good as another */ 191#define nxreset noreset /* one unused function is as good as another */ 192#define nxdevtotty nodevtotty /* one NULL return is as good as another */ 193d_select_t nxselect; 194#define nxmmap nommap /* one -1 return is as good as another */ 195#define nxstrategy nostrategy /* one NULL value is as good as another */ 196d_dump_t nxdump; 197#define nxpsize nopsize /* one NULL value is as good as another */ 198 199d_rdwr_t rawread; 200d_rdwr_t rawwrite; 201 202l_read_t l_noread; 203l_write_t l_nowrite; 204 205int bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw *old)); 206int cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw *old)); 207dev_t chrtoblk __P((dev_t dev)); 208int getmajorbyname __P((const char *name)); 209int isdisk __P((dev_t dev, int type)); 210int iskmemdev __P((dev_t dev)); 211int iszerodev __P((dev_t dev)); 212int register_cdev __P((const char *name, const struct cdevsw *cdp)); 213void setconf __P((void)); 214int setdumpdev __P((dev_t)); 215int unregister_cdev __P((const char *name, const struct cdevsw *cdp)); 216#endif /* KERNEL */ 217 218#include <machine/conf.h> 219 220#endif /* !_SYS_CONF_H_ */ 221