/* $NetBSD: pceb.c,v 1.3 2008/04/28 20:23:33 martin 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. * * 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/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: pceb.c,v 1.3 2008/04/28 20:23:33 martin Exp $"); #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" int pcebmatch(struct device *, struct cfdata *, void *); void pcebattach(struct device *, struct device *, void *); CFATTACH_DECL(pceb, sizeof(struct device), pcebmatch, pcebattach, NULL, NULL); void pceb_callback(struct device *); 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(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa = aux; /* * Match anything which claims to be PCI-EISA bridge. */ if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_EISA) return (1); /* * Match some known PCI-EISA bridges explicitly. * XXX this is probably not necessary, should be matched by above * condition */ 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(struct device *parent, struct device *self, void *aux) { struct pci_attach_args *pa = aux; char devinfo[256]; int error; aprint_normal("\n"); /* * Just print out a description and defer configuration * until all PCI devices have been attached. */ pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); aprint_normal("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, PCI_REVISION(pa->pa_class)); prep_eisa_io_space_tag.pbs_extent = prep_io_space_tag.pbs_extent; error = bus_space_init(&prep_eisa_io_space_tag, "eisa-ioport", NULL, 0); if (error) panic("prep_bus_space_init: can't init eisa io tag"); prep_eisa_mem_space_tag.pbs_extent = prep_mem_space_tag.pbs_extent; error = bus_space_init(&prep_eisa_mem_space_tag, "eisa-iomem", NULL, 0); if (error) panic("prep_bus_space_init: can't init eisa mem tag"); config_defer(self, pceb_callback); } void pceb_callback(struct device *self) { union pceb_attach_args ea; /* * Attach the EISA bus behind this bridge. */ memset(&ea, 0, sizeof(ea)); ea.ea_eba.eba_iot = &prep_eisa_io_space_tag; ea.ea_eba.eba_memt = &prep_eisa_mem_space_tag; #if NEISA > 0 ea.ea_eba.eba_dmat = &eisa_bus_dma_tag; #endif config_found_ia(self, "eisabus", &ea.ea_eba, eisabusprint); /* * Attach the ISA bus behind this bridge. */ memset(&ea, 0, sizeof(ea)); ea.ea_iba.iba_iot = &genppc_isa_io_space_tag; ea.ea_iba.iba_memt = &genppc_isa_mem_space_tag; #if NISA > 0 ea.ea_iba.iba_dmat = &isa_bus_dma_tag; #endif config_found_ia(self, "isabus", &ea.ea_iba, isabusprint); }