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