From d6583bb2a13f329cf0332ef2570eb8bb8fc0e39c Mon Sep 17 00:00:00 2001 From: Theo de Raadt Date: Wed, 18 Oct 1995 08:53:40 +0000 Subject: initial import of NetBSD tree --- sys/dev/cninit.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 sys/dev/cninit.c (limited to 'sys/dev/cninit.c') diff --git a/sys/dev/cninit.c b/sys/dev/cninit.c new file mode 100644 index 00000000000..9b24717dd65 --- /dev/null +++ b/sys/dev/cninit.c @@ -0,0 +1,86 @@ +/* $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. 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. + * + * from: Utah $Hdr: cons.c 1.7 92/01/21$ + * + * @(#)cons.c 8.2 (Berkeley) 1/12/94 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +extern struct consdev constab[]; + +extern struct consdev *cn_tab; /* physical console device info */ + +void +cninit() +{ + register 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); +} -- cgit v1.2.3