1 /* $NetBSD: pcib.c,v 1.7 2004/08/30 15:05:16 drochner 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 * from: i386/pci/pcib.c,v 1.12 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.7 2004/08/30 15:05:16 drochner Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 48 #include <machine/bus.h> 49 50 #include <dev/isa/isavar.h> 51 52 #include <dev/pci/pcivar.h> 53 #include <dev/pci/pcireg.h> 54 55 #include <dev/pci/pcidevs.h> 56 57 #include "isadma.h" 58 59 int pcibmatch __P((struct device *, struct cfdata *, void *)); 60 void pcibattach __P((struct device *, struct device *, void *)); 61 62 CFATTACH_DECL(pcib, sizeof(struct device), 63 pcibmatch, pcibattach, NULL, NULL); 64 65 void pcib_callback __P((struct device *)); 66 67 int 68 pcibmatch(parent, match, aux) 69 struct device *parent; 70 struct cfdata *match; 71 void *aux; 72 { 73 struct pci_attach_args *pa = aux; 74 75 /* 76 * Match tested PCI-ISA bridges. 77 */ 78 switch (PCI_VENDOR(pa->pa_id)) { 79 case PCI_VENDOR_ALI: 80 switch (PCI_PRODUCT(pa->pa_id)) { 81 case PCI_PRODUCT_ALI_M1543: 82 return (1); 83 } 84 break; 85 } 86 87 return (0); 88 } 89 90 void 91 pcibattach(parent, self, aux) 92 struct device *parent, *self; 93 void *aux; 94 { 95 struct pci_attach_args *pa = aux; 96 char devinfo[256]; 97 98 printf("\n"); 99 100 /* 101 * Just print out a description and set the ISA bus 102 * callback. 103 */ 104 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 105 printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, 106 PCI_REVISION(pa->pa_class)); 107 108 /* Set the ISA bus callback */ 109 config_defer(self, pcib_callback); 110 } 111 112 void 113 pcib_callback(self) 114 struct device *self; 115 { 116 struct isabus_attach_args iba; 117 118 /* 119 * Attach the ISA bus behind this bridge. 120 */ 121 memset(&iba, 0, sizeof(iba)); 122 iba.iba_iot = &isa_io_bs_tag; 123 iba.iba_memt = &isa_mem_bs_tag; 124 #if NISADMA > 0 125 iba.iba_dmat = &isa_bus_dma_tag; 126 #endif 127 config_found_ia(self, "isabus", &iba, isabusprint); 128 } 129