conf.h revision 12521
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 1.22 1995/11/06 00:36:14 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)); 61 62typedef int d_read_t __P((dev_t, struct uio *, int)); 63typedef int d_write_t __P((dev_t, struct uio *, int)); 64typedef int d_rdwr_t __P((dev_t, struct uio *, int)); 65typedef void d_stop_t __P((struct tty *, int)); 66typedef int d_reset_t __P((dev_t)); 67typedef struct tty *d_devtotty_t __P((dev_t)); 68typedef int d_select_t __P((dev_t, int, struct proc *)); 69typedef int d_mmap_t __P((dev_t, int, int)); 70typedef struct tty * d_ttycv_t __P((dev_t)); 71 72typedef int l_open_t __P((dev_t dev, struct tty *tp)); 73typedef int l_close_t __P((struct tty *tp, int flag)); 74typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); 75typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); 76typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data, int flag, 77 struct proc *p)); 78typedef int l_rint_t __P((int c, struct tty *tp)); 79typedef int l_start_t __P((struct tty *tp)); 80typedef int l_modem_t __P((struct tty *tp, int flag)); 81 82struct bdevsw { 83 d_open_t *d_open; 84 d_close_t *d_close; 85 d_strategy_t *d_strategy; 86 d_ioctl_t *d_ioctl; 87 d_dump_t *d_dump; 88 d_psize_t *d_psize; 89 int d_flags; 90}; 91 92#ifdef KERNEL 93extern struct bdevsw bdevsw[]; 94#endif 95 96struct cdevsw { 97 d_open_t *d_open; 98 d_close_t *d_close; 99 d_rdwr_t *d_read; 100 d_rdwr_t *d_write; 101 d_ioctl_t *d_ioctl; 102 d_stop_t *d_stop; 103 d_reset_t *d_reset; /* XXX not used */ 104 d_ttycv_t *d_devtotty; 105 d_select_t *d_select; 106 d_mmap_t *d_mmap; 107 d_strategy_t *d_strategy; 108}; 109 110#ifdef KERNEL 111extern struct cdevsw cdevsw[]; 112#endif 113 114struct linesw { 115 l_open_t *l_open; 116 l_close_t *l_close; 117 l_read_t *l_read; 118 l_write_t *l_write; 119 l_ioctl_t *l_ioctl; 120 l_rint_t *l_rint; 121 l_start_t *l_start; 122 l_modem_t *l_modem; 123}; 124 125#ifdef KERNEL 126extern struct linesw linesw[]; 127extern int nlinesw; 128 129int ldisc_register __P((int , struct linesw *)); 130void ldisc_deregister __P((int)); 131#define LDISC_LOAD -1 /* Loadable line discipline */ 132#endif 133 134struct swdevt { 135 dev_t sw_dev; 136 int sw_flags; 137 int sw_nblks; 138 struct vnode *sw_vp; 139}; 140#define SW_FREED 0x01 141#define SW_SEQUENTIAL 0x02 142#define sw_freed sw_flags /* XXX compat */ 143 144#ifdef KERNEL 145d_open_t noopen; 146d_close_t noclose; 147d_read_t noread; 148d_write_t nowrite; 149d_ioctl_t noioctl; 150d_stop_t nostop; 151d_reset_t noreset; 152d_devtotty_t nodevtotty; 153d_select_t noselect; 154d_mmap_t nommap; 155 156#ifdef JREMOD 157/* Bogus defines for compatibility. */ 158#define noioc noioctl 159#define nostrat nostrategy 160#define zerosize nopsize 161#endif /*JREMOD*/ 162/* 163 * XXX d_strategy seems to be unused for cdevs that aren't associated with 164 * bdevs and called without checking for it being non-NULL for bdevs. 165 */ 166#define nostrategy ((d_strategy_t *)NULL) 167 168d_dump_t nodump; 169 170/* 171 * nopsize is little used, so not worth having dummy functions for. 172 */ 173#define nopsize ((d_psize_t *)NULL) 174 175d_open_t nullopen; 176d_close_t nullclose; 177#define nullstop nostop /* one void return is as good as another */ 178#define nullreset noreset /* one unused function is as good as another */ 179 180d_open_t nxopen; 181d_close_t nxclose; 182d_read_t nxread; 183d_write_t nxwrite; 184d_ioctl_t nxioctl; 185#define nxstop nostop /* one void return is as good as another */ 186#define nxreset noreset /* one unused function is as good as another */ 187#define nxdevtotty nodevtotty /* one NULL return is as good as another */ 188d_select_t nxselect; 189#define nxmmap nommap /* one -1 return is as good as another */ 190#define nxstrategy nostrategy /* one NULL value is as good as another */ 191d_dump_t nxdump; 192#define nxpsize nopsize /* one NULL value is as good as another */ 193 194l_read_t l_noread; 195l_write_t l_nowrite; 196 197dev_t chrtoblk __P((dev_t dev)); 198int getmajorbyname __P((const char *name)); 199int isdisk __P((dev_t dev, int type)); 200int iskmemdev __P((dev_t dev)); 201int iszerodev __P((dev_t dev)); 202int register_cdev __P((const char *name, const struct cdevsw *cdp)); 203int setdumpdev __P((dev_t)); 204int unregister_cdev __P((const char *name, const struct cdevsw *cdp)); 205#ifdef JREMOD 206int cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw *old)); 207int bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw *old)); 208#endif 209#endif /* KERNEL */ 210 211#include <machine/conf.h> 212 213#endif /* !_SYS_CONF_H_ */ 214