NetBSD/sys/arch/sun3/sun3x/vme.c

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/* $NetBSD: vme.c,v 1.4 1998/02/05 04:58:03 gwr Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Gordon W. Ross.
*
* 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 by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
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/* Does this machine have a VME bus? */
extern int cpu_has_vme;
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/*
* Convert vme unit number to bus type,
* but only for supported bus types.
* (See autoconf.h and vme.h)
*/
#define VME_UNITS 6
static const struct {
int bustype;
char name[8];
} vme_info[VME_UNITS] = {
{ BUS_VME16D16, "A16/D16" },
{ BUS_VME16D32, "A16/D32" },
{ BUS_VME24D16, "A24/D16" },
{ BUS_VME24D32, "A24/D32" },
{ BUS_VME32D16, "A32/D16" },
{ BUS_VME32D32, "A32/D32" },
};
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static int vme_match __P((struct device *, struct cfdata *, void *));
static void vme_attach __P((struct device *, struct device *, void *));
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struct cfattach vme_ca = {
sizeof(struct device), vme_match, vme_attach
};
static int
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vme_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct confargs *ca = aux;
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int unit;
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if (cpu_has_vme == 0)
return (0);
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unit = cf->cf_unit;
if (unit >= VME_UNITS)
return (0);
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if (ca->ca_bustype != vme_info[unit].bustype)
return (0);
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return (1);
}
static void
vme_attach(parent, self, args)
struct device *parent;
struct device *self;
void *args;
{
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int unit;
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unit = self->dv_unit;
printf(": (%s)\n", vme_info[unit].name);
/* We know ca_bustype == BUS_VMExx */
(void) config_search(bus_scan, self, args);
}