syscons_isa.c

来自「基于组件方式开发操作系统的OSKIT源代码」· C语言 代码 · 共 75 行

/*-
 * Copyright (c) 1999 Kazutaka YOKOTA <[e-mail]>
 * 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 as
 *    the first lines of this file unmodified.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * $Id: syscons_isa.c,v 1.1 1999/01/19 11:30:56 yokota Exp $
 */

#include "sc.h"
#include "opt_syscons.h"

#if NSC > 0

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>

#include <machine/console.h>
#include <machine/apm_bios.h>

#include <dev/syscons/syscons.h>

#include <i386/isa/isa_device.h>

static int	scprobe(struct isa_device *dev);
static int	scattach(struct isa_device *dev);

struct isa_driver scdriver = {
	scprobe,
	scattach,
	"sc",
	1
};

static int
scprobe(struct isa_device *dev)
{
	int error;

	error = sc_probe_unit(dev->id_unit, dev->id_flags);
	return ((error == 0) ? -1 : 0);
}

static int
scattach(struct isa_device *dev)
{
	int error;

	error = sc_attach_unit(dev->id_unit, dev->id_flags);
	return ((error == 0) ? 0 : 1);
}

#endif /* NSC > 0 */