115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/* $NetBSD: intio.c,v 1.14 2011/06/06 16:52:18 matt 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 Jason R. Thorpe.
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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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*
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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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/*
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* Autoconfiguration support for next68k internal i/o space.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: intio.c,v 1.14 2011/06/06 16:52:18 matt Exp $");
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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 <sys/reboot.h>
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#include <machine/autoconf.h>
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#include <next68k/dev/intiovar.h>
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int intiomatch(device_t, cfdata_t, void *);
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void intioattach(device_t, device_t, void *);
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int intioprint(void *, const char *);
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int intiosearch(device_t, cfdata_t, const int *, void *);
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CFATTACH_DECL_NEW(intio, 0,
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intiomatch, intioattach, NULL, NULL);
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#if 0
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struct cfdriver intio_cd = {
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NULL, "intio", DV_DULL
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};
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#endif
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static bool intio_attached;
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int
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intiomatch(device_t parent, cfdata_t match, void *aux)
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{
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/* Allow only one instance. */
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if (intio_attached)
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return (0);
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return (1);
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}
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void
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intioattach(device_t parent, device_t self, void *aux)
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{
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printf("\n");
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/* Search for and attach children. */
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config_search_ia(intiosearch, self, "intio", aux);
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intio_attached = true;
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}
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int
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intioprint(void *aux, const char *pnp)
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{
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struct intio_attach_args *ia = aux;
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if (ia->ia_addr)
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aprint_normal(" addr %p", ia->ia_addr);
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return (UNCONF);
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}
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int
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intiosearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
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{
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struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux;
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struct intio_attach_args ia;
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do {
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ia.ia_addr = NULL;
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ia.ia_bst = NEXT68K_INTIO_BUS_SPACE;
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ia.ia_dmat = mba->mba_dmat;
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if (config_match(parent, cf, &ia) == 0)
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break;
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config_attach(parent, cf, &ia, intioprint);
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} while (cf->cf_fstate == FSTATE_STAR);
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return (0);
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}
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