/*	$NetBSD: mainbus.c,v 1.22 2021/08/07 16:18:47 thorpej Exp $	*/

/*
 * Copyright (c) 2000 Soren S. Jorvang.  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 AUTHOR 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 AUTHOR 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: mainbus.c,v 1.22 2021/08/07 16:18:47 thorpej Exp $");

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

#include <mips/cpuregs.h>

#include <machine/autoconf.h>

#include "locators.h"

static int	mainbus_match(device_t, cfdata_t, void *);
static void	mainbus_attach(device_t, device_t, void *);
static int	mainbus_search(device_t, cfdata_t,
			       const int *, void *);
int		mainbus_print(void *, const char *);

CFATTACH_DECL_NEW(mainbus, 0,
    mainbus_match, mainbus_attach, NULL, NULL);

extern struct mips_bus_space cobalt_bs;

static int
mainbus_match(device_t parent, cfdata_t cf, void *aux)
{

	return 1;
}

static void
mainbus_attach(device_t parent, device_t self, void *aux)
{
	struct mainbus_attach_args ma;

	aprint_normal("\n");

	config_search(self, &ma,
	    CFARGS(.search = mainbus_search));
}

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

	do {
		ma->ma_addr = cf->cf_loc[MAINBUSCF_ADDR];
		ma->ma_iot = &cobalt_bs;
		ma->ma_level = cf->cf_loc[MAINBUSCF_LEVEL];
		ma->ma_irq = cf->cf_loc[MAINBUSCF_IRQ];
		if (config_probe(parent, cf, ma))
			config_attach(parent, cf, ma, mainbus_print, CFARGS_NONE);
	} while (cf->cf_fstate == FSTATE_STAR);

	return 0;
}

int
mainbus_print(void *aux, const char *pnp)
{
	struct mainbus_attach_args *ma = aux;

	if (pnp != 0)
		return QUIET;

	if (ma->ma_addr != MAINBUSCF_ADDR_DEFAULT)
		aprint_normal(" addr 0x%"PRIxBUSADDR, ma->ma_addr);
	if (ma->ma_level != MAINBUSCF_LEVEL_DEFAULT)
		aprint_normal(" level %d", ma->ma_level);
	if (ma->ma_irq != MAINBUSCF_IRQ_DEFAULT)
		aprint_normal(" irq %d", ma->ma_irq);

	return UNCONF;
}
