1 /* $NetBSD: pceb.c,v 1.5 1998/08/05 02:11:00 perry 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/types.h> 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 44 #include <machine/bus.h> 45 46 #include <dev/isa/isavar.h> 47 #include <dev/eisa/eisavar.h> 48 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcireg.h> 51 52 #include <dev/pci/pcidevs.h> 53 54 #include "eisa.h" 55 #include "isa.h" 56 57 int pcebmatch __P((struct device *, struct cfdata *, void *)); 58 void pcebattach __P((struct device *, struct device *, void *)); 59 60 struct cfattach pceb_ca = { 61 sizeof(struct device), pcebmatch, pcebattach 62 }; 63 64 void pceb_callback __P((struct device *)); 65 int pceb_print __P((void *, const char *)); 66 67 union pceb_attach_args { 68 const char *ea_name; /* XXX should be common */ 69 struct isabus_attach_args ea_iba; 70 struct eisabus_attach_args ea_eba; 71 }; 72 73 int 74 pcebmatch(parent, match, aux) 75 struct device *parent; 76 struct cfdata *match; 77 void *aux; 78 { 79 struct pci_attach_args *pa = aux; 80 81 /* 82 * Match all known PCI-EISA bridges. 83 */ 84 switch (PCI_VENDOR(pa->pa_id)) { 85 case PCI_VENDOR_INTEL: 86 switch (PCI_PRODUCT(pa->pa_id)) { 87 case PCI_PRODUCT_INTEL_PCEB: 88 return (1); 89 } 90 break; 91 } 92 93 return (0); 94 } 95 96 void 97 pcebattach(parent, self, aux) 98 struct device *parent, *self; 99 void *aux; 100 { 101 struct pci_attach_args *pa = aux; 102 char devinfo[256]; 103 104 printf("\n"); 105 106 /* 107 * Just print out a description and defer configuration 108 * until all PCI devices have been attached. 109 */ 110 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 111 printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, 112 PCI_REVISION(pa->pa_class)); 113 114 config_defer(self, pceb_callback); 115 } 116 117 void 118 pceb_callback(self) 119 struct device *self; 120 { 121 union pceb_attach_args ea; 122 123 /* 124 * Attach the EISA bus behind this bridge. 125 */ 126 memset(&ea, 0, sizeof(ea)); 127 ea.ea_eba.eba_busname = "eisa"; 128 ea.ea_eba.eba_iot = I386_BUS_SPACE_IO; 129 ea.ea_eba.eba_memt = I386_BUS_SPACE_MEM; 130 #if NEISA > 0 131 ea.ea_eba.eba_dmat = &eisa_bus_dma_tag; 132 #endif 133 config_found(self, &ea.ea_eba, pceb_print); 134 135 /* 136 * Attach the ISA bus behind this bridge. 137 */ 138 memset(&ea, 0, sizeof(ea)); 139 ea.ea_iba.iba_busname = "isa"; 140 ea.ea_iba.iba_iot = I386_BUS_SPACE_IO; 141 ea.ea_iba.iba_memt = I386_BUS_SPACE_MEM; 142 #if NISA > 0 143 ea.ea_iba.iba_dmat = &isa_bus_dma_tag; 144 #endif 145 config_found(self, &ea.ea_iba, pceb_print); 146 } 147 148 int 149 pceb_print(aux, pnp) 150 void *aux; 151 const char *pnp; 152 { 153 union pceb_attach_args *ea = aux; 154 155 if (pnp) 156 printf("%s at %s", ea->ea_name, pnp); 157 return (UNCONF); 158 } 159