319 lines
9.0 KiB
C
319 lines
9.0 KiB
C
/* $NetBSD: conf.c,v 1.4 1998/12/26 00:53:49 tsubai Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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.c 8.2 (Berkeley) 11/14/93
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/conf.h>
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#include <sys/vnode.h>
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#include <machine/conf.h>
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#include "vnd.h"
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#include "sd.h"
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#include "st.h"
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#include "fdc.h"
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#include "ccd.h"
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#include "md.h"
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#include "ch.h"
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#include "ss.h"
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#include "cd.h"
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#include "uk.h"
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#include "raid.h"
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struct bdevsw bdevsw[] =
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{
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bdev_disk_init(NSD,sd), /* 0: SCSI disk */
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bdev_disk_init(NFD,fd), /* 1: fd */
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bdev_disk_init(NMD,md), /* 2: memory disk */
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bdev_notdef(), /* 3: */
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bdev_swap_init(1,sw), /* 4: swap pseudo-device */
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bdev_notdef(), /* 5: rd */
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bdev_disk_init(NVND,vnd), /* 6: vnode disk driver */
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bdev_disk_init(NCCD,ccd), /* 7: concatenated disk driver */
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bdev_notdef(), /* 8: zd */
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bdev_notdef(), /* 9: */
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bdev_notdef(), /* 10: */
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bdev_notdef(), /* 11: vd */
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bdev_notdef(), /* 12: xd */
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bdev_notdef(), /* 13: */
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bdev_notdef(), /* 14: */
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bdev_notdef(), /* 15: */
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bdev_disk_init(NCD,cd), /* 16: SCSI CD-ROM */
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bdev_tape_init(NST,st), /* 17: SCSI tape */
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bdev_notdef(), /* 18: */
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bdev_notdef(), /* 19: */
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bdev_notdef(), /* 20: */
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bdev_notdef(), /* 21: */
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bdev_notdef(), /* 22: */
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bdev_notdef(), /* 23: */
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bdev_lkm_dummy(), /* 24: */
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bdev_lkm_dummy(), /* 25: */
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bdev_lkm_dummy(), /* 26: */
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bdev_lkm_dummy(), /* 27: */
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bdev_notdef(), /* 28: */
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bdev_notdef(), /* 29: */
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bdev_notdef(), /* 30: */
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bdev_notdef(), /* 31: */
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bdev_disk_init(NRAID,raid), /* 32: RAIDframe disk driver */
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};
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int nblkdev = sizeof(bdevsw) / sizeof(bdevsw[0]);
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/*
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* Swapdev is a fake block device implemented in sw.c and only used
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* internally to get to swstrategy. It cannot be provided to the
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* users, because the swstrategy routine munches the b_dev and b_blkno
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* entries before calling the appropriate driver. This would horribly
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* confuse, e.g. the hashing routines. User access (e.g., for libkvm
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* and ps) is provided through the /dev/drum character (raw) device.
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*/
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dev_t swapdev = makedev(4, 0);
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#include "tun.h"
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#include "pty.h"
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#include "bpfilter.h"
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#include "zsc.h"
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#include "fb.h"
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#define fbpoll seltrue
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#include "ipfilter.h"
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#include "rnd.h"
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#include "scsibus.h"
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struct cdevsw cdevsw[] =
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{
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cdev_cn_init(1,cn), /* 0: virtual console */
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cdev_tty_init(NZSC,zs), /* 1: scc 82530 serial interface */
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cdev_ctty_init(1,ctty), /* 2: controlling terminal */
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cdev_mm_init(1,mm), /* 3: /dev/{null,mem,kmem,...} */
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cdev_disk_init(NSD,sd), /* 4: sd */
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cdev_notdef(), /* 5: fd */
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cdev_notdef(), /* 6: lp */
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cdev_swap_init(1,sw), /* 7: /dev/drum (swap pseudo-device) */
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cdev_tty_init(NPTY,pts), /* 8: pseudo-tty slave */
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cdev_ptc_init(NPTY,ptc), /* 9: pseudo-tty master */
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cdev_notdef(), /* 10: md */
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cdev_notdef(), /* 11: kb */
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cdev_mouse_init(1,ms), /* 12: ms */
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cdev_notdef(), /* 13: xio */
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cdev_fb_init(NFB,fb), /* 14: frame buffer */
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cdev_notdef(), /* 15: */
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cdev_tape_init(NST,st), /* 16: SCSI tape */
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cdev_notdef(), /* 17: lbp */
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cdev_notdef(), /* 18: ir */
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cdev_notdef(), /* 19: vme */
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cdev_notdef(), /* 20: gpib */
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cdev_notdef(), /* 21: rd */
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cdev_tty_init(NFB,bmcn), /* 22: bitmap console (was zd XXX) */
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cdev_notdef(), /* 23: ether */
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cdev_bpftun_init(NBPFILTER,bpf),/* 24: Berkeley packet filter */
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cdev_bpftun_init(NTUN,tun), /* 25: network tunnel */
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cdev_notdef(), /* 26: */
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cdev_notdef(), /* 27: */
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cdev_notdef(), /* 28: scsi */
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cdev_notdef(), /* 29: shm */
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cdev_notdef(), /* 30: sem */
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cdev_notdef(), /* 31: vvcrs */
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cdev_notdef(), /* 32: fddi */
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cdev_log_init(1,log), /* 33: /dev/klog */
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cdev_notdef(), /* 34: ib */
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cdev_notdef(), /* 35: sb */
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cdev_notdef(), /* 36: sbe */
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cdev_notdef(), /* 37: vd */
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cdev_notdef(), /* 38: xd */
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cdev_notdef(), /* 39: isdn */
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cdev_notdef(), /* 40: rb */
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cdev_notdef(), /* 41: gs */
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cdev_notdef(), /* 42: rx */
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cdev_notdef(), /* 43: vcd */
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cdev_notdef(), /* 44: g3fax */
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cdev_lkm_init(NLKM,lkm), /* 45: lkm */
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cdev_ipf_init(NIPFILTER,ipl), /* 46: ipl */
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cdev_rnd_init(NRND,rnd), /* 47: random source pseudo-device */
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cdev_fd_init(1,filedesc), /* 48: file descriptor pseudo-dev */
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cdev_disk_init(NCCD,ccd), /* 49: concatenated disk driver */
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cdev_disk_init(NVND,vnd), /* 50: vnode disk driver */
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cdev_notdef(), /* 51: mono frame buffer */
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cdev_notdef(), /* 52: */
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cdev_notdef(), /* 53: */
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cdev_uk_init(NUK,uk), /* 54: SCSI unknown */
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cdev_disk_init(NCD,cd), /* 55: SCSI CD-ROM */
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cdev_scanner_init(NSS,ss), /* 56: SCSI scanner */
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cdev_ch_init(NCH,ch), /* 57: SCSI changer */
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cdev_notdef(), /* 58: */
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cdev_notdef(), /* 59: */
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cdev_notdef(), /* 60: */
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cdev_notdef(), /* 61: */
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cdev_notdef(), /* 62: */
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cdev_notdef(), /* 63: */
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cdev_lkm_dummy(), /* 64: */
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cdev_lkm_dummy(), /* 65: */
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cdev_lkm_dummy(), /* 66: */
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cdev_lkm_dummy(), /* 67: */
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cdev_notdef(), /* 68: */
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cdev_notdef(), /* 69: */
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cdev_notdef(), /* 70: */
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cdev_notdef(), /* 71: */
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cdev_notdef(), /* 72: */
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cdev_scsibus_init(NSCSIBUS,scsibus), /* 73: SCSI bus */
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cdev_disk_init(NRAID,raid), /* 74: RAIDframe disk driver */
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};
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int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
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int mem_no = 3; /* major device number of memory special file */
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/*
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* Routine that identifies /dev/mem and /dev/kmem.
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*/
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int
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iskmemdev(dev)
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dev_t dev;
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{
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return (major(dev) == mem_no && minor(dev) < 2);
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}
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/*
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* Returns true if dev is /dev/zero.
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*/
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int
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iszerodev(dev)
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dev_t dev;
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{
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return (major(dev) == mem_no && minor(dev) == 12);
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}
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static int chrtoblktbl[] = {
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/* XXXX This needs to be dynamic for LKMs. */
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/*VCHR*/ /*VBLK*/
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/* 0 */ NODEV,
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/* 1 */ NODEV,
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/* 2 */ NODEV,
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/* 3 */ NODEV,
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/* 4 */ 0,
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/* 5 */ NODEV,
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/* 6 */ NODEV,
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/* 7 */ NODEV,
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/* 8 */ NODEV,
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/* 9 */ NODEV,
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/* 10 */ 2,
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/* 11 */ NODEV,
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/* 12 */ NODEV,
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/* 13 */ NODEV,
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/* 14 */ NODEV,
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/* 15 */ NODEV,
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/* 16 */ NODEV,
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/* 17 */ NODEV,
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/* 18 */ NODEV,
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/* 19 */ NODEV,
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/* 20 */ NODEV,
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/* 21 */ NODEV,
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/* 22 */ NODEV,
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/* 23 */ NODEV,
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/* 24 */ NODEV,
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/* 25 */ NODEV,
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/* 26 */ NODEV,
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/* 27 */ NODEV,
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/* 28 */ NODEV,
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/* 29 */ NODEV,
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/* 30 */ NODEV,
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/* 31 */ NODEV,
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/* 32 */ NODEV,
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/* 33 */ NODEV,
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/* 34 */ NODEV,
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/* 35 */ NODEV,
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/* 36 */ NODEV,
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/* 37 */ NODEV,
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/* 38 */ NODEV,
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/* 39 */ NODEV,
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/* 40 */ NODEV,
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/* 41 */ NODEV,
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/* 42 */ NODEV,
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/* 43 */ NODEV,
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/* 44 */ NODEV,
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/* 45 */ NODEV,
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/* 46 */ NODEV,
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/* 47 */ NODEV,
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/* 48 */ NODEV,
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/* 49 */ NODEV,
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/* 50 */ NODEV,
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/* 51 */ NODEV,
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/* 52 */ NODEV,
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/* 53 */ NODEV,
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/* 54 */ NODEV,
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/* 55 */ NODEV,
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/* 56 */ NODEV,
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/* 57 */ NODEV,
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/* 58 */ NODEV,
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/* 59 */ NODEV,
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/* 60 */ NODEV,
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/* 61 */ NODEV,
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/* 62 */ NODEV,
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/* 63 */ NODEV,
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/* 64 */ NODEV,
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/* 65 */ NODEV,
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/* 66 */ NODEV,
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/* 67 */ NODEV,
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/* 68 */ NODEV,
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/* 69 */ NODEV,
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/* 70 */ NODEV,
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/* 71 */ NODEV,
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/* 72 */ NODEV,
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/* 73 */ NODEV,
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/* 74 */ 32,
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};
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/*
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* Routine to convert from character to block device number.
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*/
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dev_t
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chrtoblk(dev)
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dev_t dev;
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{
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int blkmaj;
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if (major(dev) >= nchrdev)
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return (NODEV);
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blkmaj = chrtoblktbl[major(dev)];
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if (blkmaj == NODEV)
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return (NODEV);
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return (makedev(blkmaj, minor(dev)));
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}
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