NetBSD/sys/arch/i386/pci/pceb.c

168 lines
4.4 KiB
C

/* $NetBSD: pceb.c,v 1.2 1998/02/06 08:00:52 thorpej Exp $ */
/*-
* Copyright (c) 1996, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <dev/eisa/eisavar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include "eisa.h"
#include "isa.h"
#ifdef __BROKEN_INDIRECT_CONFIG
int pcebmatch __P((struct device *, void *, void *));
#else
int pcebmatch __P((struct device *, struct cfdata *, void *));
#endif
void pcebattach __P((struct device *, struct device *, void *));
struct cfattach pceb_ca = {
sizeof(struct device), pcebmatch, pcebattach
};
void pceb_callback __P((void *));
int pceb_print __P((void *, const char *));
union pceb_attach_args {
const char *ea_name; /* XXX should be common */
struct isabus_attach_args ea_iba;
struct eisabus_attach_args ea_eba;
};
int
pcebmatch(parent, match, aux)
struct device *parent;
#ifdef __BROKEN_INDIRECT_CONFIG
void *match;
#else
struct cfdata *match;
#endif
void *aux;
{
struct pci_attach_args *pa = aux;
/*
* Match all known PCI-EISA bridges.
*/
switch (PCI_VENDOR(pa->pa_id)) {
case PCI_VENDOR_INTEL:
switch (PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_INTEL_PCEB:
return (1);
}
break;
}
return (0);
}
void
pcebattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pci_attach_args *pa = aux;
char devinfo[256];
printf("\n");
/*
* Just print out a description and set the EISA bus
* callback.
*/
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo,
PCI_REVISION(pa->pa_class));
set_pci_isa_bridge_callback(pceb_callback, self);
}
void
pceb_callback(arg)
void *arg;
{
struct device *self = arg;
union pceb_attach_args ea;
/*
* Attach the EISA bus behind this bridge.
*/
bzero(&ea, sizeof(ea));
ea.ea_eba.eba_busname = "eisa";
ea.ea_eba.eba_iot = I386_BUS_SPACE_IO;
ea.ea_eba.eba_memt = I386_BUS_SPACE_MEM;
#if NEISA > 0
ea.ea_eba.eba_dmat = &eisa_bus_dma_tag;
#endif
config_found(self, &ea.ea_eba, pceb_print);
/*
* Attach the ISA bus behind this bridge.
*/
bzero(&ea, sizeof(ea));
ea.ea_iba.iba_busname = "isa";
ea.ea_iba.iba_iot = I386_BUS_SPACE_IO;
ea.ea_iba.iba_memt = I386_BUS_SPACE_MEM;
#if NISA > 0
ea.ea_iba.iba_dmat = &isa_bus_dma_tag;
#endif
config_found(self, &ea.ea_iba, pceb_print);
}
int
pceb_print(aux, pnp)
void *aux;
const char *pnp;
{
union pceb_attach_args *ea = aux;
if (pnp)
printf("%s at %s", ea->ea_name, pnp);
return (UNCONF);
}