conf.h revision 29350
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 8.5 (Berkeley) 1/9/95 39 * $Id: conf.h,v 1.34 1997/02/22 09:44:58 peter 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 dev, int oflags, int devtype, struct proc *p)); 56typedef int d_close_t __P((dev_t dev, int fflag, int devtype, struct proc *p)); 57typedef void d_strategy_t __P((struct buf *bp)); 58typedef int d_ioctl_t __P((dev_t dev, int cmd, caddr_t data, 59 int fflag, struct proc *p)); 60typedef int d_dump_t __P((dev_t dev)); 61typedef int d_psize_t __P((dev_t dev)); 62 63typedef int d_read_t __P((dev_t dev, struct uio *uio, int ioflag)); 64typedef int d_write_t __P((dev_t dev, struct uio *uio, int ioflag)); 65typedef void d_stop_t __P((struct tty *tp, int rw)); 66typedef int d_reset_t __P((dev_t dev)); 67typedef struct tty *d_devtotty_t __P((dev_t dev)); 68typedef int d_poll_t __P((dev_t dev, int events, struct proc *p)); 69typedef int d_mmap_t __P((dev_t dev, int offset, int nprot)); 70 71typedef int l_open_t __P((dev_t dev, struct tty *tp)); 72typedef int l_close_t __P((struct tty *tp, int flag)); 73typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); 74typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); 75typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data, 76 int flag, struct proc *p)); 77typedef int l_rint_t __P((int c, struct tty *tp)); 78typedef int l_start_t __P((struct tty *tp)); 79typedef int l_modem_t __P((struct tty *tp, int flag)); 80 81/* 82 * Types for d_type. 83 */ 84#define D_TAPE 1 85#define D_DISK 2 86#define D_TTY 3 87 88/* 89 * Block device switch table 90 */ 91struct bdevsw { 92 d_open_t *d_open; 93 d_close_t *d_close; 94 d_strategy_t *d_strategy; 95 d_ioctl_t *d_ioctl; 96 d_dump_t *d_dump; 97 d_psize_t *d_psize; 98 int d_flags; 99 char *d_name; /* name of the driver e.g. audio */ 100 struct cdevsw *d_cdev; /* cross pointer to the cdev */ 101 int d_maj; /* the major number we were assigned */ 102}; 103 104#ifdef KERNEL 105extern struct bdevsw *bdevsw[]; 106#endif 107 108/* 109 * Character device switch table 110 */ 111struct cdevsw { 112 d_open_t *d_open; 113 d_close_t *d_close; 114 d_read_t *d_read; 115 d_write_t *d_write; 116 d_ioctl_t *d_ioctl; 117 d_stop_t *d_stop; 118 d_reset_t *d_reset; /* XXX not used */ 119 d_devtotty_t *d_devtotty; 120 d_poll_t *d_poll; 121 d_mmap_t *d_mmap; 122 d_strategy_t *d_strategy; 123 char *d_name; /* see above */ 124 struct bdevsw *d_bdev; 125 int d_maj; 126}; 127 128#ifdef KERNEL 129extern struct cdevsw *cdevsw[]; 130#endif 131 132/* 133 * Line discipline switch table 134 */ 135struct linesw { 136 l_open_t *l_open; 137 l_close_t *l_close; 138 l_read_t *l_read; 139 l_write_t *l_write; 140 l_ioctl_t *l_ioctl; 141 l_rint_t *l_rint; 142 l_start_t *l_start; 143 l_modem_t *l_modem; 144}; 145 146#ifdef KERNEL 147extern struct linesw linesw[]; 148extern int nlinesw; 149 150int ldisc_register __P((int , struct linesw *)); 151void ldisc_deregister __P((int)); 152#define LDISC_LOAD -1 /* Loadable line discipline */ 153#endif 154 155/* 156 * Swap device table 157 */ 158struct swdevt { 159 dev_t sw_dev; 160 int sw_flags; 161 int sw_nblks; 162 struct vnode *sw_vp; 163}; 164#define SW_FREED 0x01 165#define SW_SEQUENTIAL 0x02 166#define sw_freed sw_flags /* XXX compat */ 167 168#ifdef KERNEL 169d_open_t noopen; 170d_close_t noclose; 171d_read_t noread; 172d_write_t nowrite; 173d_ioctl_t noioctl; 174d_stop_t nostop; 175d_reset_t noreset; 176d_devtotty_t nodevtotty; 177d_mmap_t nommap; 178 179/* Bogus defines for compatibility. */ 180#define noioc noioctl 181#define nostrat nostrategy 182#define zerosize nopsize 183/* 184 * XXX d_strategy seems to be unused for cdevs that aren't associated with 185 * bdevs and called without checking for it being non-NULL for bdevs. 186 */ 187#define nostrategy ((d_strategy_t *)NULL) 188 189d_dump_t nodump; 190 191/* 192 * nopsize is little used, so not worth having dummy functions for. 193 */ 194#define nopsize ((d_psize_t *)NULL) 195 196d_open_t nullopen; 197d_close_t nullclose; 198#define nullstop nostop /* one void return is as good as another */ 199#define nullreset noreset /* one unused function is as good as another */ 200 201d_open_t nxopen; 202d_close_t nxclose; 203d_read_t nxread; 204d_write_t nxwrite; 205d_ioctl_t nxioctl; 206#define nxstop nostop /* one void return is as good as another */ 207#define nxreset noreset /* one unused function is as good as another */ 208#define nxdevtotty nodevtotty /* one NULL return is as good as another */ 209#define nxmmap nommap /* one -1 return is as good as another */ 210#define nxstrategy nostrategy /* one NULL value is as good as another */ 211d_dump_t nxdump; 212#define nxpsize nopsize /* one NULL value is as good as another */ 213 214d_read_t rawread; 215d_write_t rawwrite; 216 217l_read_t l_noread; 218l_write_t l_nowrite; 219 220int bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw **old)); 221int cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw **old)); 222void cdevsw_make __P((struct bdevsw *from)); 223void bdevsw_add_generic __P((int bdev, int cdev, struct bdevsw *bdevsw)); 224dev_t chrtoblk __P((dev_t dev)); 225int isdisk __P((dev_t dev, int type)); 226int iskmemdev __P((dev_t dev)); 227int iszerodev __P((dev_t dev)); 228void setconf __P((void)); 229#endif /* KERNEL */ 230 231#include <machine/conf.h> 232 233#endif /* !_SYS_CONF_H_ */ 234