109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/* $NetBSD: vme.c,v 1.4 1998/02/05 04:58:03 gwr Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Gordon W. Ross.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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/* Does this machine have a VME bus? */
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extern int cpu_has_vme;
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/*
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* Convert vme unit number to bus type,
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* but only for supported bus types.
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* (See autoconf.h and vme.h)
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*/
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#define VME_UNITS 6
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static const struct {
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int bustype;
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char name[8];
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} vme_info[VME_UNITS] = {
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{ BUS_VME16D16, "A16/D16" },
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{ BUS_VME16D32, "A16/D32" },
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{ BUS_VME24D16, "A24/D16" },
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{ BUS_VME24D32, "A24/D32" },
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{ BUS_VME32D16, "A32/D16" },
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{ BUS_VME32D32, "A32/D32" },
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};
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static int vme_match __P((struct device *, struct cfdata *, void *));
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static void vme_attach __P((struct device *, struct device *, void *));
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struct cfattach vme_ca = {
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sizeof(struct device), vme_match, vme_attach
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};
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static int
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vme_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct confargs *ca = aux;
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int unit;
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if (cpu_has_vme == 0)
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return (0);
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unit = cf->cf_unit;
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if (unit >= VME_UNITS)
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return (0);
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if (ca->ca_bustype != vme_info[unit].bustype)
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return (0);
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return (1);
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}
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static void
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vme_attach(parent, self, args)
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struct device *parent;
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struct device *self;
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void *args;
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{
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int unit;
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unit = self->dv_unit;
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printf(": (%s)\n", vme_info[unit].name);
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/* We know ca_bustype == BUS_VMExx */
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(void) config_search(bus_scan, self, args);
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}
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