144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/* $NetBSD: pcmb.c,v 1.2 2001/04/21 19:18:20 jdolecek Exp $ */
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/*-
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* Copyright (c) 1996, 1998 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 and Jaromir Dolecek.
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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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/*
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* "Driver" for PCI-MCA Bridges.
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*/
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#include <sys/types.h>
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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/bus.h>
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#include <dev/mca/mcavar.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include "mca.h"
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int pcmbmatch __P((struct device *, struct cfdata *, void *));
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void pcmbattach __P((struct device *, struct device *, void *));
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struct cfattach pcmb_ca = {
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sizeof(struct device), pcmbmatch, pcmbattach
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};
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void pcmb_callback __P((struct device *));
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int pcmb_print __P((void *, const char *));
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union pcmb_attach_args {
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const char *ma_name; /* XXX should be common */
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struct mcabus_attach_args ma_mba;
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};
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int
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pcmbmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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/*
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* Match anything which claims to be PCI-MCA bridge.
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*/
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if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE
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&& PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_MC)
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return (1);
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return (0);
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}
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void
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pcmbattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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char devinfo[256];
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printf("\n");
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/*
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* Just print out a description and defer configuration
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* until all PCI devices have been attached.
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*/
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
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printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo,
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PCI_REVISION(pa->pa_class));
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config_defer(self, pcmb_callback);
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}
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void
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pcmb_callback(self)
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struct device *self;
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{
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union pcmb_attach_args ma;
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/*
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* Attach MCA bus behind this bridge.
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*/
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ma.ma_mba.mba_busname = "mca";
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ma.ma_mba.mba_iot = I386_BUS_SPACE_IO;
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ma.ma_mba.mba_memt = I386_BUS_SPACE_MEM;
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#if NMCA > 0
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ma.ma_mba.mba_dmat = &mca_bus_dma_tag;
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#endif
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ma.ma_mba.mba_mc = NULL;
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ma.ma_mba.mba_bus = 0;
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config_found(self, &ma.ma_mba, pcmb_print);
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}
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int
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pcmb_print(aux, pnp)
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void *aux;
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const char *pnp;
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{
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union pcmb_attach_args *ma = aux;
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if (pnp)
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printf("%s at %s", ma->ma_name, pnp);
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return (UNCONF);
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}
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