xref: /src/sys/arch/sh3/dev/shb.c

/*	$NetBSD: shb.c,v 1.16 2021/08/07 16:19:05 thorpej Exp $	*/

/*-
 * Copyright (c) 2002 The NetBSD Foundation, Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: shb.c,v 1.16 2021/08/07 16:19:05 thorpej Exp $");

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

#include <machine/autoconf.h>

extern struct cfdriver shb_cd;

static int shb_match(device_t, cfdata_t, void *);
static void shb_attach(device_t, device_t, void *);
static int shb_print(void *, const char *);
static int shb_search(device_t, cfdata_t, const int *, void *);

CFATTACH_DECL_NEW(shb, 0,
    shb_match, shb_attach, NULL, NULL);


static int
shb_match(device_t parent, cfdata_t cf, void *aux)
{
	struct mainbus_attach_args *ma = aux;

	if (strcmp(ma->ma_name, shb_cd.cd_name) != 0)
		return (0);

	return (1);
}

static void
shb_attach(device_t parent, device_t self, void *aux)
{

	aprint_naive("\n");
	aprint_normal("\n");

	config_search(self, NULL,
	    CFARGS(.search = shb_search));

	/*
	 * XXX: TODO: provide hooks to manage on-chip modules.  For
	 * now register null hooks which is no worse than before.
	 */
	if (!pmf_device_register(self, NULL, NULL))
		aprint_error_dev(self, "unable to establish power handler\n");
}

static int
shb_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{

	if (config_probe(parent, cf, NULL))
		config_attach(parent, cf, NULL, shb_print, CFARGS_NONE);

	return (0);
}

static int
shb_print(void *aux, const char *pnp)
{

	return (pnp ? QUIET : UNCONF);
}