/*      $NetBSD: obio.c,v 1.19 2021/08/07 16:19:00 thorpej Exp $        */

/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Wayne Knowles
*
* 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: obio.c,v 1.19 2021/08/07 16:19:00 thorpej Exp $");

#include "locators.h"

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

#include <machine/autoconf.h>
#include <machine/mainboard.h>
#include <machine/bus.h>
#include <machine/sysconf.h>

static int      obio_match(device_t, cfdata_t, void *);
static void     obio_attach(device_t, device_t, void *);
static int      obio_search(device_t, cfdata_t, const int *, void *);
static int      obio_print(void *, const char *);
static void     obio_intr_establish(bus_space_tag_t, int, int, int,
                   int (*)(void *), void *);

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

extern struct cfdriver obio_cd;

struct mipsco_bus_space obio_bustag;
struct mipsco_bus_dma_tag obio_dmatag;

static int
obio_match(device_t parent, cfdata_t cf, void *aux)
{
       struct confargs *ca = aux;

       if (strcmp(ca->ca_name, obio_cd.cd_name) != 0)
               return 0;

       return 1;
}

static void
obio_attach(device_t parent, device_t self, void *aux)
{
       struct confargs *ca = aux;

       /* PIZAZZ (Mips 3000 Magnum)  Address Map */
       mipsco_bus_space_init(&obio_bustag, "obio",
                             0x18000000, 0xb8000000,
                             0xb8000000, 0x08000000);

       _bus_dma_tag_init(&obio_dmatag);
       obio_bustag.bs_intr_establish = obio_intr_establish; /* XXX */

       ca->ca_bustag = &obio_bustag;
       ca->ca_dmatag = &obio_dmatag;

       printf("\n");
       config_search(self, ca,
           CFARGS(.search = obio_search));
}

static int
obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
       struct confargs *ca = aux;

       ca->ca_addr = cf->cf_addr;
       ca->ca_name = cf->cf_name;

       if (config_probe(parent, cf, ca))
               config_attach(parent, cf, ca, obio_print, CFARGS_NONE);

       return 0;
}

/*
* Print out the confargs.  The (parent) name is non-NULL
* when there was no match found by config_found().
*/
static int
obio_print(void *args, const char *name)
{
       struct confargs *ca = args;

       if (name)
               return(QUIET);

       if (ca->ca_addr != -1)
               aprint_normal(" addr 0x%x", ca->ca_addr);

       return(UNCONF);
}

void
obio_intr_establish(bus_space_tag_t bst, int level, int pri, int flags,
       int (*func)(void *), void *arg)
{
       (*platform.intr_establish)(level, func, arg);
}