218 lines
6.3 KiB
C
218 lines
6.3 KiB
C
/* $NetBSD: conf.c,v 1.33 1997/03/20 12:00:34 matthias Exp $ */
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/*-
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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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 7.9 (Berkeley) 5/28/91
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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/vnode.h>
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#include <machine/conf.h>
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#include "ccd.h"
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#include "cd.h"
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#include "md.h"
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#include "sd.h"
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#include "st.h"
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#include "vnd.h"
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#include "bpfilter.h"
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#include "ch.h"
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#include "ipfilter.h"
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#include "lpt.h"
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#include "pty.h"
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#include "scn.h"
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#include "se.h"
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#include "ss.h"
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#include "tun.h"
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#include "uk.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_swap_init(1,sw), /* 1: swap pseudo-device */
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bdev_tape_init(NST,st), /* 2: SCSI tape */
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bdev_disk_init(NMD,md), /* 3: memory disk */
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bdev_disk_init(NCD,cd), /* 4: SCSI CD-ROM */
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bdev_disk_init(NVND,vnd), /* 5: vnode disk driver */
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bdev_disk_init(NCCD,ccd), /* 6: concatenated disk driver */
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bdev_lkm_dummy(), /* 7 */
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bdev_lkm_dummy(), /* 8 */
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bdev_lkm_dummy(), /* 9 */
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bdev_lkm_dummy(), /* 10 */
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bdev_lkm_dummy(), /* 11 */
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bdev_lkm_dummy(), /* 12 */
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};
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int nblkdev = sizeof(bdevsw) / sizeof(bdevsw[0]);
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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_ctty_init(1,ctty), /* 1: controlling terminal */
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cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */
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cdev_disk_init(NSD,sd), /* 3: SCSI disk */
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cdev_swap_init(1,sw), /* 4: /dev/drum (swap device) */
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cdev_tty_init(NPTY,pts), /* 5: pseudo-tty slave */
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cdev_ptc_init(NPTY,ptc), /* 6: pseudo-tty master */
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cdev_log_init(1,log), /* 7: /dev/klog */
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cdev_tty_init(NSCN,scn), /* 8: serial ports */
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cdev_disk_init(NMD,md), /* 9: memory disk */
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cdev_tape_init(NST,st), /* 10: SCSI tape */
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cdev_fd_init(1,filedesc), /* 11: file descriptor pseudo-device */
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cdev_disk_init(NCD,cd), /* 12: SCSI CD-ROM */
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cdev_disk_init(NVND,vnd), /* 13: vnode disk driver */
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cdev_bpftun_init(NBPFILTER,bpf),/* 14: Berkeley packet filter */
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cdev_bpftun_init(NTUN,tun), /* 15: network tunnel */
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cdev_ch_init(NCH,ch), /* 16: SCSI autochanger */
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cdev_lpt_init(NLPT, lpt), /* 17: Centronics */
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cdev_disk_init(NCCD,ccd), /* 18: concatenated disk driver */
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cdev_scanner_init(NSS,ss), /* 19: SCSI scanner */
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cdev_uk_init(NUK,uk), /* 20: SCSI unknown */
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cdev_lkm_init(NLKM,lkm), /* 21: loadable module driver */
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cdev_se_init(NSE, se), /* 22: SCSI ethernet */
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cdev_lkm_dummy(), /* 23 */
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cdev_lkm_dummy(), /* 24 */
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cdev_lkm_dummy(), /* 25 */
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cdev_lkm_dummy(), /* 26 */
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cdev_lkm_dummy(), /* 27 */
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cdev_ipf_init(NIPFILTER,ipl), /* 28: ip-filter device */
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};
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int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
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int mem_no = 2; /* major device number of memory special file */
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/*
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* Swapdev is a fake device implemented
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* in sw.c used only internally to get to swstrategy.
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* It cannot be provided to the users, because the
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* swstrategy routine munches the b_dev and b_blkno entries
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* before calling the appropriate driver. This would horribly
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* confuse, e.g. the hashing routines. Instead, /dev/drum is
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* provided as a character (raw) device.
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*/
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dev_t swapdev = makedev(1, 0);
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/*
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* Returns true if dev is /dev/mem or /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 */ 0,
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/* 4 */ NODEV,
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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 */ 3,
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/* 10 */ 2,
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/* 11 */ NODEV,
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/* 12 */ 4,
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/* 13 */ 5,
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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 */ 6,
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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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};
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/*
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* Convert a character device number to a block device number.
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*/
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int
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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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/*
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* This entire table could be autoconfig()ed but that would mean that
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* the kernel's idea of the console would be out of sync with that of
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* the standalone boot. I think it best that they both use the same
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* known algorithm unless we see a pressing need otherwise.
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*/
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#include <dev/cons.h>
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cons_decl(scn);
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struct consdev constab[] = {
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#if NSCN > 0
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cons_init(scn),
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#endif
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{ 0 },
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};
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