* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.

/* $NetBSD: obio.c,v 1.13 2021/08/07 16:18:49 thorpej Exp $ */

/*
* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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 device autoconfiguration support for ADI BRH
* evaluation boards.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.13 2021/08/07 16:18:49 thorpej Exp $");

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

#include <machine/autoconf.h>
#include <sys/bus.h>

#include <arm/xscale/beccreg.h>
#include <arm/xscale/beccvar.h>

#include <evbarm/adi_brh/brhreg.h>
#include <evbarm/adi_brh/obiovar.h>

#include "locators.h"

int obio_match(device_t, cfdata_t, void *);
void obio_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(obio, 0,
obio_match, obio_attach, NULL, NULL);

int obio_print(void *, const char *);
int obio_search(device_t, cfdata_t, const int *, void *);

/* there can be only one */
bool obio_found;

int
obio_match(device_t parent, cfdata_t cf, void *aux)
{
#if 0
struct mainbus_attach_args *ma = aux;
#endif

if (obio_found)
return (0);

#if 1
/* XXX Shoot arch/arm/mainbus in the head. */
return (1);
#else
if (strcmp(cf->cf_name, ma->ma_name) == 0)
return (1);

return (0);
#endif
}

void
obio_attach(device_t parent, device_t self, void *aux)
{

obio_found = true;

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

/*
* Attach all on-board devices as described in the kernel
* configuration file.
*/
config_search(self, NULL,
CFARGS(.search = obio_search));
}

int
obio_print(void *aux, const char *pnp)
{
struct obio_attach_args *oba = aux;

aprint_normal(" addr 0x%08lx", oba->oba_addr);
if (oba->oba_size != OBIOCF_SIZE_DEFAULT)
aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1));
if (oba->oba_width != OBIOCF_WIDTH_DEFAULT)
aprint_normal(" width %d", oba->oba_width);
if (oba->oba_irq != OBIOCF_IRQ_DEFAULT)
aprint_normal(" irq %d", oba->oba_irq);

return (UNCONF);
}

int
obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
struct obio_attach_args oba;

oba.oba_st = &obio_bs_tag;

oba.oba_addr = cf->cf_loc[OBIOCF_ADDR];
oba.oba_size = cf->cf_loc[OBIOCF_SIZE];
oba.oba_width = cf->cf_loc[OBIOCF_WIDTH];
oba.oba_irq = cf->cf_loc[OBIOCF_IRQ];

if (config_probe(parent, cf, &oba))
config_attach(parent, cf, &oba, obio_print, CFARGS_NONE);

return (0);
}