284 lines
8.8 KiB
C
284 lines
8.8 KiB
C
/* $NetBSD: conf.c,v 1.6 2001/01/14 11:17:30 martin 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 "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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#include "tun.h"
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#include "pty.h"
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#include "bpfilter.h"
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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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#include "wd.h"
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bdev_decl(wd);
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cdev_decl(wd);
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#include "ld.h"
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#include "zstty.h"
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cdev_decl(zs);
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#include "com.h"
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cdev_decl(com);
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/* open, close, ioctl */
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#define cdev_i4bctl_init(c,n) { \
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dev_init(c,n,open), dev_init(c,n,close), (dev_type_read((*))) enodev, \
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(dev_type_write((*))) enodev, dev_init(c,n,ioctl), \
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(dev_type_stop((*))) enodev, 0, seltrue, \
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(dev_type_mmap((*))) enodev }
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/* open, close, read, write, poll */
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#define cdev_i4brbch_init(c,n) { \
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dev_init(c,n,open), dev_init(c,n,close), dev_init(c,n,read), \
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dev_init(c,n,write), dev_init(c,n,ioctl), \
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(dev_type_stop((*))) enodev, \
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0, dev_init(c,n,poll), (dev_type_mmap((*))) enodev }
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/* open, close, read, write, poll */
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#define cdev_i4btel_init(c,n) { \
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dev_init(c,n,open), dev_init(c,n,close), dev_init(c,n,read), \
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dev_init(c,n,write), (dev_type_ioctl((*))) enodev, \
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(dev_type_stop((*))) enodev, \
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0, dev_init(c,n,poll), (dev_type_mmap((*))) enodev, D_TTY }
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/* open, close, read, ioctl */
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#define cdev_i4btrc_init(c,n) { \
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dev_init(c,n,open), dev_init(c,n,close), dev_init(c,n,read), \
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(dev_type_write((*))) enodev, dev_init(c,n,ioctl), \
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(dev_type_stop((*))) enodev, 0, (dev_type_poll((*))) enodev, \
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(dev_type_mmap((*))) enodev }
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/* open, close, read, ioctl, poll */
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#define cdev_i4b_init(c,n) { \
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dev_init(c,n,open), dev_init(c,n,close), dev_init(c,n,read), \
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(dev_type_write((*))) enodev, dev_init(c,n,ioctl), \
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(dev_type_stop((*))) enodev, 0, dev_init(c,n,poll), \
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(dev_type_mmap((*))) enodev }
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#include "i4b.h"
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#include "i4bctl.h"
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#include "i4btrc.h"
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#include "i4brbch.h"
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#include "i4btel.h"
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cdev_decl(i4b);
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cdev_decl(i4bctl);
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cdev_decl(i4btrc);
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cdev_decl(i4brbch);
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cdev_decl(i4btel);
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struct bdevsw bdevsw[] =
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{
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bdev_notdef(), /* 0: */
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bdev_swap_init(1,sw), /* 1: swap pseudo-device */
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bdev_disk_init(NMD,md), /* 2: memory disk */
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bdev_disk_init(NCCD,ccd), /* 3: concatenated disk driver */
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bdev_disk_init(NVND,vnd), /* 4: vnode disk driver */
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bdev_disk_init(NRAID,raid), /* 5: RAIDframe */
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bdev_notdef(), /* 6: */
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bdev_notdef(), /* 7: */
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bdev_notdef(), /* 8: */
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bdev_notdef(), /* 9: */
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bdev_disk_init(NSD,sd), /* 10: SCSI disk */
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bdev_tape_init(NST,st), /* 11: SCSI tape */
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bdev_disk_init(NCD,cd), /* 12: SCSI CD-ROM */
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bdev_disk_init(NWD,wd), /* 13: ATA disk */
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bdev_disk_init(NLD,ld), /* 14: logical disk driver */
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bdev_notdef(), /* 15: */
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bdev_notdef(), /* 16: */
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bdev_notdef(), /* 17: */
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bdev_notdef(), /* 18: */
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bdev_notdef(), /* 19: */
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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(0, 0);
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struct cdevsw cdevsw[] =
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{
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cdev_cn_init(1,cn), /* 0: console */
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cdev_swap_init(1,sw), /* 1: /dev/drum (swap pseudo-device) */
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cdev_disk_init(NMD,md), /* 2: memory disk driver */
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cdev_disk_init(NVND,vnd), /* 3: vnode disk driver */
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cdev_disk_init(NCCD,ccd), /* 4: concatenated disk driver */
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cdev_disk_init(NRAID,raid), /* 5: RAIDframe disk driver */
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cdev_notdef(), /* 6: */
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cdev_notdef(), /* 7: */
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cdev_notdef(), /* 8: */
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cdev_notdef(), /* 9: */
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cdev_disk_init(NSD,sd), /* 10: SCSI disk */
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cdev_tape_init(NST,st), /* 11: SCSI tape */
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cdev_disk_init(NCD,cd), /* 12: SCSI CD-ROM */
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cdev_disk_init(NWD,wd), /* 13: ATA disk */
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cdev_disk_init(NLD,ld), /* 14: logical disk driver */
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cdev_notdef(), /* 15: */
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cdev_notdef(), /* 16: */
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cdev_notdef(), /* 17: */
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cdev_notdef(), /* 18: */
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cdev_notdef(), /* 19: */
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cdev_mm_init(1,mm), /* 20: /dev/{null,mem,kmem,...} */
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cdev_ctty_init(1,ctty), /* 21: controlling terminal */
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cdev_tty_init(NPTY,pts), /* 22: pseudo-tty slave */
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cdev_ptc_init(NPTY,ptc), /* 23: pseudo-tty master */
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cdev_log_init(1,log), /* 24: /dev/klog */
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cdev_lkm_init(NLKM,lkm), /* 25: lkm */
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cdev_fd_init(1,filedesc), /* 26: file descriptor pseudo-device */
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cdev_bpftun_init(NBPFILTER,bpf),/* 27: Berkeley packet filter */
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cdev_bpftun_init(NTUN,tun), /* 28: network tunnel */
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cdev_ipf_init(NIPFILTER,ipl), /* 29: ipl */
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cdev_rnd_init(NRND,rnd), /* 30: random source pseudo-device */
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cdev_uk_init(NUK,uk), /* 31: SCSI unknown */
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cdev_scanner_init(NSS,ss), /* 32: SCSI scanner */
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cdev_ch_init(NCH,ch), /* 33: SCSI changer */
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cdev_scsibus_init(NSCSIBUS,scsibus), /* 34: SCSI bus */
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cdev_tty_init(NZSTTY,zs), /* 35: Zilog 8530 serial port */
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cdev_tty_init(NCOM,com), /* 36: com serial port */
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cdev_tty_init(1,arcs), /* 37: ARCS PROM console */
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cdev_i4b_init(NI4B, i4b), /* 38: i4b main device */
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cdev_i4bctl_init(NI4BCTL, i4bctl), /* 39: i4b control device */
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cdev_i4brbch_init(NI4BRBCH, i4brbch), /* 40: i4b raw b-channel access */
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cdev_i4btrc_init(NI4BTRC, i4btrc), /* 41: i4b trace device */
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cdev_i4btel_init(NI4BTEL, i4btel), /* 42: i4b phone device */
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cdev_notdef(), /* 43: */
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cdev_notdef(), /* 44: */
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};
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int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
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int mem_no = 20; /* Major device number of memory special file */
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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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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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/* XXX This needs to be dynamic for LKMs. */
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/* VCHR */ /* VBLK */
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/* 0 */ NODEV,
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/* 1 */ 1,
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/* 2 */ 2,
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/* 3 */ 3,
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/* 4 */ 3,
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/* 5 */ 5,
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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 */ 10,
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/* 11 */ 11,
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/* 12 */ 12,
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/* 13 */ 13,
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/* 14 */ 14,
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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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/* 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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};
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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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