IABSD.fr/src/sys/dev/cninit.c

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• Author : guenther
  Date : 2017-12-30 20:46:59
  Hash : 98edb555
  Message : Delete unnecessary <sys/file.h> includes ok millert@ krw@

• sys/dev/cninit.c

• /*	$OpenBSD: cninit.c,v 1.15 2017/12/30 20:46:59 guenther Exp $	*/
  /*	$NetBSD: cninit.c,v 1.2 1995/04/11 22:08:10 pk Exp $	*/
  
  /*
   * Copyright (c) 1988 University of Utah.
   * Copyright (c) 1990, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * This code is derived from software contributed to Berkeley by
   * the Systems Programming Group of the University of Utah Computer
   * Science Department.
   *
   * 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. 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.
   *
   * from: Utah $Hdr: cons.c 1.7 92/01/21$
   *
   *	@(#)cons.c	8.2 (Berkeley) 1/12/94
   */
  
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/ioctl.h>
  #include <sys/tty.h>
  #include <sys/conf.h>
  #include <sys/vnode.h>
  
  #include <dev/cons.h>
  
  struct consdev *cn_tab = NULL;
  
  void
  cninit(void)
  {
  	struct consdev *cp;
  
  	/*
  	 * Collect information about all possible consoles
  	 * and find the one with highest priority.
  	 */
  	for (cp = constab; cp->cn_probe; cp++) {
  		(*cp->cn_probe)(cp);
  		if (cp->cn_pri != CN_DEAD &&
  		    (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
  			cn_tab = cp;
  	}
  
  	/*
  	 * No console, we can handle it.
  	 */
  	if ((cp = cn_tab) == NULL)
  		return;
  
  	/*
  	 * Turn on console.
  	 */
  	(*cp->cn_init)(cp);
  }