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553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
318 lines
No EOL
10 KiB
C
Vendored
318 lines
No EOL
10 KiB
C
Vendored
/* $NetBSD: conf.h,v 1.161 2022/03/28 12:39:18 riastradh Exp $ */
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/*-
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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. 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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*/
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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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#include <sys/queue.h>
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#include <sys/device_if.h>
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struct buf;
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struct knote;
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struct lwp;
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struct tty;
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struct uio;
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struct vnode;
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/*
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* Types for d_flag
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*/
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#define D_OTHER 0x0000
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#define D_TAPE 0x0001
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#define D_DISK 0x0002
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#define D_TTY 0x0003
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#define D_TYPEMASK 0x00ff
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#define D_MPSAFE 0x0100
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#define D_NEGOFFSAFE 0x0200
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#define D_UNUSED0 0x0400 /* was D_MCLOSE */
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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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int (*d_open)(dev_t, int, int, struct lwp *);
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int (*d_cancel)(dev_t, int, int, struct lwp *);
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int (*d_close)(dev_t, int, int, struct lwp *);
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void (*d_strategy)(struct buf *);
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int (*d_ioctl)(dev_t, u_long, void *, int, struct lwp *);
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int (*d_dump)(dev_t, daddr_t, void *, size_t);
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int (*d_psize)(dev_t);
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int (*d_discard)(dev_t, off_t, off_t);
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int (*d_devtounit)(dev_t);
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struct cfdriver *d_cfdriver;
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int d_flag;
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};
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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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int (*d_open)(dev_t, int, int, struct lwp *);
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int (*d_cancel)(dev_t, int, int, struct lwp *);
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int (*d_close)(dev_t, int, int, struct lwp *);
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int (*d_read)(dev_t, struct uio *, int);
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int (*d_write)(dev_t, struct uio *, int);
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int (*d_ioctl)(dev_t, u_long, void *, int, struct lwp *);
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void (*d_stop)(struct tty *, int);
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struct tty * (*d_tty)(dev_t);
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int (*d_poll)(dev_t, int, struct lwp *);
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paddr_t (*d_mmap)(dev_t, off_t, int);
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int (*d_kqfilter)(dev_t, struct knote *);
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int (*d_discard)(dev_t, off_t, off_t);
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int (*d_devtounit)(dev_t);
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struct cfdriver *d_cfdriver;
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int d_flag;
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};
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#ifdef _KERNEL
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#include <sys/mutex.h>
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extern kmutex_t device_lock;
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int devsw_attach(const char *, const struct bdevsw *, devmajor_t *,
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const struct cdevsw *, devmajor_t *);
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void devsw_detach(const struct bdevsw *, const struct cdevsw *);
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const struct bdevsw *bdevsw_lookup(dev_t);
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const struct cdevsw *cdevsw_lookup(dev_t);
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devmajor_t bdevsw_lookup_major(const struct bdevsw *);
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devmajor_t cdevsw_lookup_major(const struct cdevsw *);
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typedef int dev_open_t(dev_t, int, int, struct lwp *);
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typedef int dev_cancel_t(dev_t, int, int, struct lwp *);
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typedef int dev_close_t(dev_t, int, int, struct lwp *);
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typedef int dev_read_t(dev_t, struct uio *, int);
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typedef int dev_write_t(dev_t, struct uio *, int);
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typedef int dev_ioctl_t(dev_t, u_long, void *, int, struct lwp *);
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typedef void dev_stop_t(struct tty *, int);
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typedef struct tty *dev_tty_t(dev_t);
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typedef int dev_poll_t(dev_t, int, struct lwp *);
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typedef paddr_t dev_mmap_t(dev_t, off_t, int);
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typedef void dev_strategy_t(struct buf *);
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typedef int dev_dump_t(dev_t, daddr_t, void *, size_t);
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typedef int dev_size_t(dev_t);
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typedef int dev_kqfilter_t(dev_t, struct knote *);
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typedef int dev_discard_t(dev_t, off_t, off_t);
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#define dev_type_open(n) dev_open_t n
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#define dev_type_cancel(n) dev_cancel_t n
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#define dev_type_close(n) dev_close_t n
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#define dev_type_read(n) dev_read_t n
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#define dev_type_write(n) dev_write_t n
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#define dev_type_ioctl(n) dev_ioctl_t n
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#define dev_type_stop(n) dev_stop_t n
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#define dev_type_tty(n) dev_tty_t n
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#define dev_type_poll(n) dev_poll_t n
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#define dev_type_mmap(n) dev_mmap_t n
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#define dev_type_strategy(n) dev_strategy_t n
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#define dev_type_dump(n) dev_dump_t n
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#define dev_type_size(n) dev_size_t n
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#define dev_type_kqfilter(n) dev_kqfilter_t n
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#define dev_type_discard(n) dev_discard_t n
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int devenodev(dev_t, ...);
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int deveopnotsupp(dev_t, ...);
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int devnullop(dev_t, ...);
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int ttyenodev(struct tty *, ...);
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void ttyvenodev(struct tty *, ...);
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void ttyvnullop(struct tty *, ...);
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#define noopen ((dev_open_t *)devenodev)
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#define noclose ((dev_close_t *)devenodev)
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#define noread ((dev_read_t *)devenodev)
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#define nowrite ((dev_write_t *)devenodev)
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#define noioctl ((dev_ioctl_t *)devenodev)
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#define nostop ((dev_stop_t *)ttyvenodev)
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#define notty NULL
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#define nopoll seltrue
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paddr_t nommap(dev_t, off_t, int);
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#define nodump ((dev_dump_t *)devenodev)
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#define nosize NULL
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#define nokqfilter seltrue_kqfilter
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#define nodiscard ((dev_discard_t *)devenodev)
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#define nullopen ((dev_open_t *)devnullop)
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#define nullclose ((dev_close_t *)devnullop)
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#define nullread ((dev_read_t *)devnullop)
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#define nullwrite ((dev_write_t *)devnullop)
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#define nullioctl ((dev_ioctl_t *)devnullop)
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#define nullstop ((dev_stop_t *)ttyvnullop)
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#define nullpoll ((dev_poll_t *)devnullop)
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#define nulldump ((dev_dump_t *)devnullop)
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#define nullkqfilter ((dev_kqfilter_t *)deveopnotsupp)
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#define nulldiscard ((dev_discard_t *)devnullop)
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/* device access wrappers. */
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dev_type_open(bdev_open);
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dev_type_cancel(bdev_cancel);
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dev_type_close(bdev_close);
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dev_type_strategy(bdev_strategy);
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dev_type_ioctl(bdev_ioctl);
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dev_type_dump(bdev_dump);
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dev_type_size(bdev_size);
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dev_type_discard(bdev_discard);
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void bdev_detached(dev_t);
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dev_type_open(cdev_open);
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dev_type_cancel(cdev_cancel);
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dev_type_close(cdev_close);
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dev_type_read(cdev_read);
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dev_type_write(cdev_write);
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dev_type_ioctl(cdev_ioctl);
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dev_type_stop(cdev_stop);
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dev_type_tty(cdev_tty);
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dev_type_poll(cdev_poll);
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dev_type_mmap(cdev_mmap);
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dev_type_kqfilter(cdev_kqfilter);
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dev_type_discard(cdev_discard);
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void cdev_detached(dev_t);
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int cdev_type(dev_t);
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int cdev_flags(dev_t);
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int bdev_type(dev_t);
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int bdev_flags(dev_t);
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/* symbolic sleep message strings */
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extern const char devopn[], devio[], devwait[], devin[], devout[];
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extern const char devioc[], devcls[];
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#endif /* _KERNEL */
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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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const char *l_name; /* Linesw name */
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LIST_ENTRY(linesw) l_list;
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u_int l_refcnt; /* locked by ttyldisc_list_slock */
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int l_no; /* legacy discipline number (for TIOCGETD) */
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int (*l_open) (dev_t, struct tty *);
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int (*l_close) (struct tty *, int);
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int (*l_read) (struct tty *, struct uio *, int);
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int (*l_write) (struct tty *, struct uio *, int);
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int (*l_ioctl) (struct tty *, u_long, void *, int,
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struct lwp *);
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int (*l_rint) (int, struct tty *);
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int (*l_start) (struct tty *);
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int (*l_modem) (struct tty *, int);
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int (*l_poll) (struct tty *, int, struct lwp *);
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};
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#ifdef _KERNEL
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void ttyldisc_init(void);
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int ttyldisc_attach(struct linesw *);
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int ttyldisc_detach(struct linesw *);
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struct linesw *ttyldisc_lookup(const char *);
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struct linesw *ttyldisc_lookup_bynum(int);
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struct linesw *ttyldisc_default(void);
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void ttyldisc_release(struct linesw *);
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/* For those defining their own line disciplines: */
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#define ttynodisc ((int (*)(dev_t, struct tty *))devenodev)
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#define ttyerrclose ((int (*)(struct tty *, int))ttyenodev)
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#define ttyerrio ((int (*)(struct tty *, struct uio *, int))ttyenodev)
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#define ttyerrstart ((int (*)(struct tty *))ttyenodev)
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int ttyerrpoll (struct tty *, int, struct lwp *);
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int ttynullioctl(struct tty *, u_long, void *, int, struct lwp *);
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int iskmemdev(dev_t);
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int seltrue_kqfilter(dev_t, struct knote *);
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#endif
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#ifdef _KERNEL
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#define DEV_MEM 0 /* minor device 0 is physical memory */
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#define DEV_KMEM 1 /* minor device 1 is kernel memory */
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#define DEV_NULL 2 /* minor device 2 is EOF/rathole */
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#ifdef COMPAT_16
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#define _DEV_ZERO_oARM 3 /* reserved: old ARM /dev/zero minor */
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#endif
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#define DEV_FULL 11 /* minor device 11 is '\0'/ENOSPC */
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#define DEV_ZERO 12 /* minor device 12 is '\0'/rathole */
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enum devnode_class {
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DEVNODE_DONTBOTHER,
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DEVNODE_SINGLE,
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DEVNODE_VECTOR,
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};
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#define DEVNODE_FLAG_LINKZERO 0x01 /* create name -> name0 link */
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#define DEVNODE_FLAG_ISMINOR0 0x02 /* vector[0] specifies minor */
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#ifdef notyet
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#define DEVNODE_FLAG_ISMINOR1 0x04 /* vector[1] specifies starting minor */
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#endif
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struct devsw_conv {
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const char *d_name;
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devmajor_t d_bmajor;
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devmajor_t d_cmajor;
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/* information about /dev nodes related to the device */
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enum devnode_class d_class;
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int d_flags;
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int d_vectdim[2];
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};
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void devsw_init(void);
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const char *devsw_blk2name(devmajor_t);
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const char *cdevsw_getname(devmajor_t);
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const char *bdevsw_getname(devmajor_t);
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devmajor_t devsw_name2blk(const char *, char *, size_t);
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devmajor_t devsw_name2chr(const char *, char *, size_t);
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dev_t devsw_chr2blk(dev_t);
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dev_t devsw_blk2chr(dev_t);
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int dev_minor_unit(dev_t);
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void mm_init(void);
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#endif /* _KERNEL */
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#ifdef _KERNEL
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void setroot(device_t, int);
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void rootconf(void);
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void swapconf(void);
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#endif /* _KERNEL */
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#endif /* !_SYS_CONF_H_ */ |