1 /* $NetBSD: pceb.c,v 1.9 2002/10/02 05:47:15 thorpej 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 1.9 2002/10/02 05:47:15 thorpej 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 CFATTACH_DECL(pceb, sizeof(struct device), 64 pcebmatch, pcebattach, NULL, NULL); 65 66 void pceb_callback __P((struct device *)); 67 int pceb_print __P((void *, const char *)); 68 69 union pceb_attach_args { 70 const char *ea_name; /* XXX should be common */ 71 struct isabus_attach_args ea_iba; 72 struct eisabus_attach_args ea_eba; 73 }; 74 75 int 76 pcebmatch(parent, match, aux) 77 struct device *parent; 78 struct cfdata *match; 79 void *aux; 80 { 81 struct pci_attach_args *pa = aux; 82 83 /* 84 * Match all known PCI-EISA bridges. 85 */ 86 switch (PCI_VENDOR(pa->pa_id)) { 87 case PCI_VENDOR_INTEL: 88 switch (PCI_PRODUCT(pa->pa_id)) { 89 case PCI_PRODUCT_INTEL_PCEB: 90 return (1); 91 } 92 break; 93 } 94 95 return (0); 96 } 97 98 void 99 pcebattach(parent, self, aux) 100 struct device *parent, *self; 101 void *aux; 102 { 103 struct pci_attach_args *pa = aux; 104 char devinfo[256]; 105 106 printf("\n"); 107 108 /* 109 * Just print out a description and defer configuration 110 * until all PCI devices have been attached. 111 */ 112 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 113 printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, 114 PCI_REVISION(pa->pa_class)); 115 116 config_defer(self, pceb_callback); 117 } 118 119 void 120 pceb_callback(self) 121 struct device *self; 122 { 123 union pceb_attach_args ea; 124 125 /* 126 * Attach the EISA bus behind this bridge. 127 */ 128 memset(&ea, 0, sizeof(ea)); 129 ea.ea_eba.eba_busname = "eisa"; 130 ea.ea_eba.eba_iot = I386_BUS_SPACE_IO; 131 ea.ea_eba.eba_memt = I386_BUS_SPACE_MEM; 132 #if NEISA > 0 133 ea.ea_eba.eba_dmat = &eisa_bus_dma_tag; 134 #endif 135 config_found(self, &ea.ea_eba, pceb_print); 136 137 /* 138 * Attach the ISA bus behind this bridge. 139 */ 140 memset(&ea, 0, sizeof(ea)); 141 ea.ea_iba.iba_busname = "isa"; 142 ea.ea_iba.iba_iot = I386_BUS_SPACE_IO; 143 ea.ea_iba.iba_memt = I386_BUS_SPACE_MEM; 144 #if NISA > 0 145 ea.ea_iba.iba_dmat = &isa_bus_dma_tag; 146 #endif 147 config_found(self, &ea.ea_iba, pceb_print); 148 } 149 150 int 151 pceb_print(aux, pnp) 152 void *aux; 153 const char *pnp; 154 { 155 union pceb_attach_args *ea = aux; 156 157 if (pnp) 158 printf("%s at %s", ea->ea_name, pnp); 159 return (UNCONF); 160 } 161