text: /*	$NetBSD: conf.c,v 1.10 2002/01/12 14:52:40 manu Exp $	*/
  
  /*
   * Copyright (c) 1990 The Regents of the University of California.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the University of
   *	California, Berkeley and its contributors.
   * 4. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  /*-
   * Derived a long time ago from
   *      @(#)conf.c	7.9 (Berkeley) 5/28/91
   */
  
  #include "opt_compat_svr4.h"
  
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/buf.h>
  #include <sys/ioctl.h>
  #include <sys/tty.h>
  #include <sys/conf.h>
  #include <sys/vnode.h>
  #include <dev/cons.h>
  
  #include "ccd.h"
  #include "cd.h"
  #include "ch.h"
  #include "md.h"
  #include "sd.h"
  #include "st.h"
  #include "vnd.h"
  #include "raid.h"
  /* No cdev for md */
  
  bdev_decl(ccd);
  bdev_decl(cd);
  bdev_decl(ch);
  bdev_decl(md);
  bdev_decl(raid);
  bdev_decl(sd);
  bdev_decl(st);
  bdev_decl(sw);
  bdev_decl(vnd);
  
  struct bdevsw	bdevsw[] =
  {
  	bdev_notdef(),         		/* 0 */
  	bdev_notdef(),			/* 1 */
  	bdev_notdef(),         		/* 2 */
  	bdev_swap_init(1,sw),		/* 3: swap pseudo-device */
  	bdev_disk_init(NSD,sd),		/* 4: SCSI disk */
  	bdev_tape_init(NST,st),		/* 5: SCSI tape */
  	bdev_disk_init(NCD,cd),		/* 6: SCSI CD-ROM */
  	bdev_notdef(),        	 	/* 7 */
  	bdev_disk_init(NVND,vnd),	/* 8: vnode disk driver */
  	bdev_disk_init(NCCD,ccd),	/* 9: concatenated disk driver */
  	bdev_notdef(),        	 	/* 10 */
  	bdev_notdef(),        	 	/* 11 */
  	bdev_notdef(),        	 	/* 12 */
  	bdev_disk_init(NMD,md),	 	/* 13: memory disk -- for install */
  	bdev_lkm_dummy(),		/* 14 */
  	bdev_lkm_dummy(),		/* 15 */
  	bdev_lkm_dummy(),		/* 16 */
  	bdev_lkm_dummy(),		/* 17 */
  	bdev_lkm_dummy(),		/* 18 */
  	bdev_lkm_dummy(),		/* 19 */
  	bdev_disk_init(NRAID,raid), 	/* 20: RAIDframe disk driver */
  };
  int	nblkdev = sizeof(bdevsw) / sizeof(bdevsw[0]);
  
  #include "bpfilter.h"
  #include "ch.h"
  #include "ipfilter.h"
  #include "pty.h"
  #include "rnd.h"
  #include "se.h"
  #include "ss.h"
  #include "tun.h"
  #include "uk.h"
  #include "zsc.h"
  #include "zstty.h"
  #include "scsibus.h"
  
  cdev_decl(bpf);
  cdev_decl(ccd);
  cdev_decl(ch);
  cdev_decl(cn);
  cdev_decl(ctty);
  cdev_decl(fd);
  cdev_decl(ipl);
  cdev_decl(log);
  cdev_decl(md);
  #define mmread	mmrw
  #define mmwrite	mmrw
  cdev_decl(mm);
  #define	ptcioctl	ptyioctl
  #define	ptctty		ptytty
  cdev_decl(ptc);
  #define	ptsioctl	ptyioctl
  #define	ptstty		ptytty
  cdev_decl(pts);
  cdev_decl(raid);
  cdev_decl(sd);
  cdev_decl(se);
  cdev_decl(ss);
  cdev_decl(st);
  cdev_decl(sw);
  cdev_decl(tun);
  cdev_decl(uk);
  cdev_decl(vnd);
  cdev_decl(zs);
  cdev_decl(zsc);
  cdev_decl(scsibus);
  
  #include "wsdisplay.h"
  cdev_decl(wsdisplay);
  #include "wskbd.h"
  cdev_decl(wskbd);
  #include "wsmouse.h"
  cdev_decl(wsmouse);
  #include "wsmux.h"
  cdev_decl(wsmux);
  
  #include "clockctl.h"
  cdev_decl(clockctl);
  
  dev_decl(filedesc,open);
  
  struct cdevsw	cdevsw[] =
  {
  	cdev_cn_init(1,cn),		/* 0: virtual console */
  	cdev_ctty_init(1,ctty),		/* 1: controlling terminal */
  	cdev_mm_init(1,mm),		/* 2: /dev/{null,mem,kmem,...} */
  	cdev_swap_init(1,sw),		/* 3: /dev/drum (swap pseudo-device) */
  	cdev_tty_init(NPTY,pts),	/* 4: pseudo-tty slave */
  	cdev_ptc_init(NPTY,ptc),	/* 5: pseudo-tty master */
  	cdev_log_init(1,log),		/* 6: /dev/klog */
  	cdev_notdef(),			/* 7 */
  	cdev_notdef(),			/* 8 */
  	cdev_notdef(),			/* 9 */
  	cdev_notdef(),			/* 10 */
  	cdev_notdef(),			/* 11 */
  	cdev_tty_init(NZSTTY,zs),	/* 12: 2 NeXT serial ports */
  	cdev_disk_init(NSD,sd),		/* 13: SCSI disk */
  	cdev_tape_init(NST,st),		/* 14: SCSI tape */
  	cdev_disk_init(NCD,cd),		/* 15: SCSI CD-ROM */
  	cdev_notdef(),			/* 16 */
  	cdev_ch_init(NCH,ch),		/* 17: SCSI autochanger */
  	cdev_notdef(),			/* 18 */
  	cdev_disk_init(NVND,vnd),	/* 19: vnode disk driver */
  	cdev_disk_init(NCCD,ccd),	/* 20: concatenated disk driver */
  	cdev_fd_init(1,filedesc),	/* 21: file descriptor pseudo-device */
  	cdev_bpftun_init(NBPFILTER,bpf),/* 22: Berkeley packet filter */
  	cdev_notdef(),			/* 23 */
  	cdev_bpftun_init(NTUN,tun),	/* 24: network tunnel */
  	cdev_lkm_init(NLKM,lkm),	/* 25: loadable module driver */
  	cdev_lkm_dummy(),		/* 26 */
  	cdev_lkm_dummy(),		/* 27 */
  	cdev_lkm_dummy(),		/* 28 */
  	cdev_lkm_dummy(),		/* 29 */
  	cdev_lkm_dummy(),		/* 30 */
  	cdev_lkm_dummy(),		/* 31 */
  	cdev_disk_init(NMD,md),		/* 32: memory disk driver */
  	cdev_scanner_init(NSS,ss),	/* 33: SCSI scanner */
  	cdev_uk_init(NUK,uk),		/* 34: SCSI unknown */
  	cdev_ipf_init(NIPFILTER,ipl),	/* 35: ip-filter device */
  	cdev_lkm_dummy(),		/* 36 */
  	cdev_se_init(NSE, se),		/* 37: SCSI ethernet */
  	cdev_rnd_init(NRND, rnd),	/* 38: random source pseudo-device */
  	cdev_scsibus_init(NSCSIBUS,scsibus), /* 39: SCSI bus */
  	cdev_disk_init(NRAID,raid),	/* 40: RAIDframe disk driver */
  	cdev_wsdisplay_init(NWSDISPLAY, wsdisplay), /* 41: frame buffers, etc. */
  	cdev_mouse_init(NWSKBD, wskbd), /* 42: keyboards */
  	cdev_mouse_init(NWSMOUSE, wsmouse),       /* 43: mice */
  	cdev_svr4_net_init(NSVR4_NET,svr4_net), /* 44: svr4 net pseudo-device */
  	cdev_mouse_init(NWSMUX, wsmux),  /* 45: ws multiplexor */
  	cdev_clockctl_init(NCLOCKCTL, clockctl),/* 46: clockctl pseudo device */
  };
  int	nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
  
  int	mem_no = 2; 	/* major device number of memory special file */
  
  /*
   * Swapdev is a fake device implemented
   * in sw.c used only internally to get to swstrategy.
   * It cannot be provided to the users, because the
   * swstrategy routine munches the b_dev and b_blkno entries
   * before calling the appropriate driver.  This would horribly
   * confuse, e.g. the hashing routines. Instead, /dev/drum is
   * provided as a character (raw) device.
   */
  dev_t	swapdev = makedev(3, 0);
  
  /*
   * Returns true if dev is /dev/mem or /dev/kmem.
   */
  int
  iskmemdev(dev)
  	dev_t	dev;
  {
  
  	return (major(dev) == mem_no && minor(dev) < 2);
  }
  
  /*
   * Returns true if dev is /dev/zero.
   */
  int
  iszerodev(dev)
  	dev_t	dev;
  {
  
  	return (major(dev) == mem_no && minor(dev) == 12);
  }
  
  static int chrtoblktab[] = {
  	/* XXXX This needs to be dynamic for LKMs. */
  	/*VCHR*/	/*VBLK*/
  	/*  0 */	NODEV,
  	/*  1 */	NODEV,
  	/*  2 */	NODEV,
  	/*  3 */	3,
  	/*  4 */	NODEV,
  	/*  5 */	NODEV,
  	/*  6 */	NODEV,
  	/*  7 */	NODEV,
  	/*  8 */	NODEV,
  	/*  9 */	NODEV,
  	/* 10 */	NODEV,
  	/* 11 */	NODEV,
  	/* 12 */	NODEV,
  	/* 13 */	4,
  	/* 14 */	5,
  	/* 15 */	6,
  	/* 16 */	NODEV,
  	/* 17 */	NODEV,
  	/* 18 */	NODEV,
  	/* 19 */	8,
  	/* 20 */	9,
  	/* 21 */	NODEV,
  	/* 22 */	NODEV,
  	/* 23 */	NODEV,
  	/* 24 */	NODEV,
  	/* 25 */	NODEV,
  	/* 26 */	NODEV,
  	/* 27 */	NODEV,
  	/* 28 */	NODEV,
  	/* 29 */	NODEV,
  	/* 30 */	NODEV,
  	/* 31 */	NODEV,
  	/* 32 */	32,
  	/* 33 */	NODEV,
  	/* 34 */	NODEV,
  	/* 35 */	NODEV,
  	/* 36 */	NODEV,
  	/* 37 */	NODEV,
  	/* 38 */	NODEV,
  	/* 39 */	NODEV,
  	/* 40 */	20,
  	/* 41 */	NODEV,
  	/* 42 */	NODEV,
  	/* 43 */	NODEV,
  	/* 44 */	NODEV,
  	/* 45 */	NODEV,
  	/* 46 */	NODEV,
  };
  
  dev_t
  chrtoblk(dev)
  	dev_t	dev;
  {
  	int	blkmaj;
  
  	if (major(dev) >= nchrdev)
  		return NODEV;
  	blkmaj = chrtoblktab[major(dev)];
  	if (blkmaj == NODEV)
  		return NODEV;
  	return (makedev(blkmaj, minor(dev)));
  }
  
  #define zscnpollc	nullcnpollc
  cons_decl(zs);
  
  #include "nextkbd.h"
  #include "nextdisplay.h"
  
  cons_decl(next);
  
  struct	consdev constab[] = {
  #if NZSTTY > 0
  	cons_init(zs),
  #endif
  #if (NNEXTKBD > 0) && (NNEXTDISPLAY > 0)
  	cons_init(next),
  #endif
  	{ 0 },
  };
  