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pcib.c revision 1.2 
      1 /*	$NetBSD: pcib.c,v 1.2 2001/06/01 15:20:06 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 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>			/* RCS ID & Copyright macro defns */
     40 
     41 __KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.2 2001/06/01 15:20:06 thorpej Exp $");
     42 
     43 #include "opt_algor_p5064.h"
     44 #include "opt_algor_p6032.h"
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/device.h>
     50 #include <sys/malloc.h>
     51 
     52 #include <machine/intr.h>
     53 #include <machine/bus.h>
     54 
     55 #include <dev/isa/isavar.h>
     56 
     57 #include <dev/pci/pcireg.h>
     58 #include <dev/pci/pcivar.h>
     59 #include <dev/pci/pcidevs.h>
     60 
     61 #ifdef ALGOR_P5064
     62 #include <algor/algor/algor_p5064var.h>
     63 #endif
     64 
     65 #ifdef ALGOR_P6032
     66 #include <algor/algor/algor_p6032var.h>
     67 #endif
     68 
     69 
     70 struct pcib_softc {
     71 	struct device	sc_dev;
     72 };
     73 
     74 int	pcib_match(struct device *, struct cfdata *, void *);
     75 void	pcib_attach(struct device *, struct device *, void *);
     76 
     77 struct cfattach pcib_ca = {
     78 	sizeof(struct pcib_softc), pcib_match, pcib_attach,
     79 };
     80 
     81 int	pcib_print(void *, const char *pnp);
     82 void	pcib_isa_attach_hook(struct device *, struct device *,
     83 	    struct isabus_attach_args *);
     84 
     85 void	pcib_bridge_callback(struct device *);
     86 
     87 int
     88 pcib_match(struct device *parent, struct cfdata *match, void *aux)
     89 {
     90 	struct pci_attach_args *pa = aux;
     91 
     92 	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
     93 	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA)
     94 		return (1);
     95 
     96 	return (0);
     97 }
     98 
     99 void
    100 pcib_attach(struct device *parent, struct device *self, void *aux)
    101 {
    102 	struct pci_attach_args *pa = aux;
    103 	char devinfo[256];
    104 
    105 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
    106 	printf(": %s (rev. 0x%02x)\n", devinfo,
    107 	    PCI_REVISION(pa->pa_class));
    108 
    109 	config_defer(self, pcib_bridge_callback);
    110 }
    111 
    112 void
    113 pcib_bridge_callback(self)
    114 	struct device *self;
    115 {
    116 	struct pcib_softc *sc = (struct pcib_softc *)self;
    117 	struct isabus_attach_args iba;
    118 
    119 	memset(&iba, 0, sizeof(iba));
    120 
    121 	iba.iba_busname = "isa";
    122 #if defined(ALGOR_P5064)
    123 	    {
    124 		struct p5064_config *acp = &p5064_configuration;
    125 
    126 		iba.iba_iot = &acp->ac_iot;
    127 		iba.iba_memt = &acp->ac_memt;
    128 		iba.iba_dmat = &acp->ac_isa_dmat;
    129 		iba.iba_ic = &acp->ac_ic;
    130 	    }
    131 #elif defined(ALGOR_P6032)
    132 	    {
    133 		/* XXX */
    134 	    }
    135 #endif
    136 
    137 	iba.iba_ic->ic_attach_hook = pcib_isa_attach_hook;
    138 
    139 	(void) config_found(&sc->sc_dev, &iba, pcib_print);
    140 }
    141 
    142 int
    143 pcib_print(void *aux, const char *pnp)
    144 {
    145 	struct isabus_attach_args *iba;
    146 
    147 	if (pnp)
    148 		printf("%s at %s", iba->iba_busname, pnp);
    149 	return (UNCONF);
    150 }
    151 
    152 void
    153 pcib_isa_attach_hook(struct device *parent, struct device *self,
    154     struct isabus_attach_args *iba)
    155 {
    156 
    157 	/* Nothing to do. */
    158 }
    159