NetBSD/sys/arch/sun3/dev/obmem.c

/*	$NetBSD: obmem.c,v 1.9 1996/10/11 00:46:48 christos Exp $	*/

/*
 * Copyright (c) 1994 Gordon W. Ross
 * Copyright (c) 1993 Adam Glass
 * 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 Adam Glass and Gordon Ross.
 * 4. The name of the authors may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
 */

/*
 * On-board MEMory (OBMEM)
 * Used by frame buffers...
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <machine/autoconf.h>
#include <machine/obmem.h>

static int  obmem_match __P((struct device *, void *, void *));
static void obmem_attach __P((struct device *, struct device *, void *));

struct cfattach obmem_ca = {
	sizeof(struct device), obmem_match, obmem_attach
};

struct cfdriver obmem_cd = {
	NULL, "obmem", DV_DULL
};

static int
obmem_match(parent, vcf, aux)
	struct device *parent;
	void *vcf, *aux;
{
	struct confargs *ca = aux;

	if (ca->ca_bustype != BUS_OBMEM)
		return (0);
	return(1);
}

static void
obmem_attach(parent, self, args)
	struct device *parent;
	struct device *self;
	void *args;
{
	kprintf("\n");

	/* We know ca_bustype == BUS_OBMEM */
	(void) config_search(bus_scan, self, args);
}