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Annotation of sys/arch/mvmeppc/pci/pcib.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: pcib.c,v 1.2 2002/03/14 01:26:41 millert Exp $        */
                      2: /*     $NetBSD: pcib.c,v 1.6 1997/06/06 23:29:16 thorpej Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1996 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Jason R. Thorpe.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #include <sys/types.h>
                     41: #include <sys/param.h>
                     42: #include <sys/systm.h>
                     43: #include <sys/device.h>
                     44:
                     45: #include <machine/bus.h>
                     46: #include <dev/isa/isavar.h>
                     47:
                     48: #include <dev/pci/pcivar.h>
                     49: #include <dev/pci/pcireg.h>
                     50:
                     51: #include <dev/pci/pcidevs.h>
                     52: #include <mvmeppc/dev/ravenreg.h>
                     53:
                     54: #include "isa.h"
                     55:
                     56: int    pcibmatch(struct device *, void *, void *);
                     57: void   pcibattach(struct device *, struct device *, void *);
                     58: void   pcib_callback(struct device *);
                     59: int    pcib_print(void *, const char *);
                     60:
                     61: struct ppc_bus_space ppc_isa_io, ppc_isa_mem;
                     62:
                     63: struct cfattach pcib_ca = {
                     64:        sizeof(struct device), pcibmatch, pcibattach
                     65: };
                     66:
                     67: struct cfdriver pcib_cd = {
                     68:        NULL, "pcib", DV_DULL
                     69: };
                     70:
                     71: int
                     72: pcibmatch(parent, match, aux)
                     73:        struct device *parent;
                     74:        void *match, *aux;
                     75: {
                     76:        struct pci_attach_args *pa = aux;
                     77:
                     78:        if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
                     79:            PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA)
                     80:                return (1);
                     81:
                     82:        switch (PCI_VENDOR(pa->pa_id)) {
                     83:        case PCI_VENDOR_SYMPHONY:
                     84:                switch (PCI_PRODUCT(pa->pa_id)) {
                     85:                case PCI_PRODUCT_SYMPHONY_82C565:
                     86:                        return (1);
                     87:                }
                     88:        }
                     89:
                     90:        return (0);
                     91: }
                     92:
                     93: void
                     94: pcibattach(parent, self, aux)
                     95:        struct device *parent, *self;
                     96:        void *aux;
                     97: {
                     98:
                     99:        ppc_isa_io = prep_isa_io_space_tag;
                    100:        ppc_isa_mem = prep_isa_mem_space_tag;
                    101:
                    102:        /*
                    103:         * Cannot attach isa bus now; must postpone for various reasons
                    104:         */
                    105:
                    106:        printf("\n");
                    107:
                    108:        config_defer(self, pcib_callback);
                    109: }
                    110:
                    111: void
                    112: pcib_callback(self)
                    113:        struct device *self;
                    114: {
                    115:        struct isabus_attach_args iba;
                    116:
                    117: #if NPCIBIOS > 0
                    118:        pci_intr_post_fixup();
                    119: #endif
                    120:
                    121:        /*
                    122:         * Attach the ISA bus behind this bridge.
                    123:         */
                    124:        memset(&iba, 0, sizeof(iba));
                    125:        iba.iba_busname = "isa";
                    126:        iba.iba_iot = &ppc_isa_io;
                    127:        iba.iba_memt = &ppc_isa_mem;
                    128: #if NISADMA > 0
                    129:        iba.iba_dmat = &isa_bus_dma_tag;
                    130: #endif
                    131:        config_found(self, &iba, pcib_print);
                    132: }
                    133:
                    134: int
                    135: pcib_print(aux, pnp)
                    136:        void *aux;
                    137:        const char *pnp;
                    138: {
                    139:        /* Only ISAs can attach to pcib's; easy. */
                    140:        if (pnp)
                    141:                printf("isa at %s", pnp);
                    142:        return (UNCONF);
                    143: }