/*      $NetBSD: gencp_xsurf.c,v 1.2 2012/10/27 17:17:26 chs Exp $ */

/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Radoslaw Kujawa.
*
* 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.
*/

/* Clockports on top of X-Surf. */

#include <sys/cdefs.h>

#include <sys/systm.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kmem.h>

#include <machine/cpu.h>

#include <amiga/amiga/device.h>

#include <amiga/dev/zbusvar.h>
#include <amiga/dev/xsurfvar.h>

#include <amiga/clockport/clockportvar.h>

static int      gencp_xsurf_match(device_t, cfdata_t, void *);
static void     gencp_xsurf_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(gencp_xsurf, sizeof(struct gencp_softc),
   gencp_xsurf_match, gencp_xsurf_attach, NULL, NULL);

static int
gencp_xsurf_match(device_t parent, cfdata_t cf, void *aux)
{
       struct xsurfbus_attach_args *xsb_aa;
       static int attach_count = 0;

       xsb_aa = aux;

       if (strcmp(xsb_aa->xaa_name, "gencp_xsurf") != 0)
               return 0;

       /* No X-Surf with more than 2 clockports exists. */
       if (attach_count >= 2)
               return 0;

       attach_count++;

       return 1;
}

static void
gencp_xsurf_attach(device_t parent, device_t self, void *aux)
{
       struct gencp_softc *sc;
       struct bus_space_tag cpb_bst;
       struct clockportbus_attach_args cpb_aa;
       struct xsurfbus_attach_args *xsb_aa;

       xsb_aa = aux;
       sc = device_private(self);
       sc->sc_dev = self;
       sc->cpb_aa = &cpb_aa;

       /* Set the address and bus access methods. */
       cpb_bst.base = xsb_aa->xaa_base;
       cpb_bst.absm = &amiga_bus_stride_4;

       sc->cpb_aa->cp_iot = &cpb_bst;

       gencp_attach(sc);
}