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pceb.c revision 1.6 
      1 /*	$NetBSD: pceb.c,v 1.6 2001/11/15 07:03:33 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: pceb.c,v 1.6 2001/11/15 07:03:33 lukem Exp $");
     41 
     42 #include <sys/types.h>
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/bus.h>
     48 
     49 #include <dev/isa/isavar.h>
     50 #include <dev/eisa/eisavar.h>
     51 
     52 #include <dev/pci/pcivar.h>
     53 #include <dev/pci/pcireg.h>
     54 
     55 #include <dev/pci/pcidevs.h>
     56 
     57 #include "eisa.h"
     58 #include "isa.h"
     59 
     60 int	pcebmatch __P((struct device *, struct cfdata *, void *));
     61 void	pcebattach __P((struct device *, struct device *, void *));
     62 
     63 struct cfattach pceb_ca = {
     64 	sizeof(struct device), pcebmatch, pcebattach
     65 };
     66 
     67 void	pceb_callback __P((struct device *));
     68 int	pceb_print __P((void *, const char *));
     69 
     70 union pceb_attach_args {
     71 	const char *ea_name;			/* XXX should be common */
     72 	struct isabus_attach_args ea_iba;
     73 	struct eisabus_attach_args ea_eba;
     74 };
     75 
     76 int
     77 pcebmatch(parent, match, aux)
     78 	struct device *parent;
     79 	struct cfdata *match;
     80 	void *aux;
     81 {
     82 	struct pci_attach_args *pa = aux;
     83 
     84 	/*
     85 	 * Match all known PCI-EISA bridges.
     86 	 */
     87 	switch (PCI_VENDOR(pa->pa_id)) {
     88 	case PCI_VENDOR_INTEL:
     89 		switch (PCI_PRODUCT(pa->pa_id)) {
     90 		case PCI_PRODUCT_INTEL_PCEB:
     91 			return (1);
     92 		}
     93 		break;
     94 	}
     95 
     96 	return (0);
     97 }
     98 
     99 void
    100 pcebattach(parent, self, aux)
    101 	struct device *parent, *self;
    102 	void *aux;
    103 {
    104 	struct pci_attach_args *pa = aux;
    105 	char devinfo[256];
    106 
    107 	printf("\n");
    108 
    109 	/*
    110 	 * Just print out a description and defer configuration
    111 	 * until all PCI devices have been attached.
    112 	 */
    113 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
    114 	printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo,
    115 	    PCI_REVISION(pa->pa_class));
    116 
    117 	config_defer(self, pceb_callback);
    118 }
    119 
    120 void
    121 pceb_callback(self)
    122 	struct device *self;
    123 {
    124 	union pceb_attach_args ea;
    125 
    126 	/*
    127 	 * Attach the EISA bus behind this bridge.
    128 	 */
    129 	memset(&ea, 0, sizeof(ea));
    130 	ea.ea_eba.eba_busname = "eisa";
    131 	ea.ea_eba.eba_iot = I386_BUS_SPACE_IO;
    132 	ea.ea_eba.eba_memt = I386_BUS_SPACE_MEM;
    133 #if NEISA > 0
    134 	ea.ea_eba.eba_dmat = &eisa_bus_dma_tag;
    135 #endif
    136 	config_found(self, &ea.ea_eba, pceb_print);
    137 
    138 	/*
    139 	 * Attach the ISA bus behind this bridge.
    140 	 */
    141 	memset(&ea, 0, sizeof(ea));
    142 	ea.ea_iba.iba_busname = "isa";
    143 	ea.ea_iba.iba_iot = I386_BUS_SPACE_IO;
    144 	ea.ea_iba.iba_memt = I386_BUS_SPACE_MEM;
    145 #if NISA > 0
    146 	ea.ea_iba.iba_dmat = &isa_bus_dma_tag;
    147 #endif
    148 	config_found(self, &ea.ea_iba, pceb_print);
    149 }
    150 
    151 int
    152 pceb_print(aux, pnp)
    153 	void *aux;
    154 	const char *pnp;
    155 {
    156 	union pceb_attach_args *ea = aux;
    157 
    158 	if (pnp)
    159 		printf("%s at %s", ea->ea_name, pnp);
    160 	return (UNCONF);
    161 }
    162