1 /* $NetBSD: pcib.c,v 1.13 2010/01/14 10:32:49 skrll 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * from: i386/pci/pcib.c,v 1.12 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.13 2010/01/14 10:32:49 skrll Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <machine/bus.h> 42 43 #include <dev/isa/isavar.h> 44 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcireg.h> 47 48 #include <dev/pci/pcidevs.h> 49 50 #include "isadma.h" 51 52 int pcibmatch(struct device *, struct cfdata *, void *); 53 void pcibattach(struct device *, struct device *, void *); 54 55 CFATTACH_DECL(pcib, sizeof(struct device), 56 pcibmatch, pcibattach, NULL, NULL); 57 58 void pcib_callback(struct device *); 59 60 int 61 pcibmatch(struct device *parent, struct cfdata *match, void *aux) 62 { 63 struct pci_attach_args *pa = aux; 64 65 /* 66 * Match tested PCI-ISA bridges. 67 */ 68 switch (PCI_VENDOR(pa->pa_id)) { 69 case PCI_VENDOR_ALI: 70 switch (PCI_PRODUCT(pa->pa_id)) { 71 case PCI_PRODUCT_ALI_M1533: 72 return (1); 73 } 74 break; 75 } 76 77 return (0); 78 } 79 80 void 81 pcibattach(struct device *parent, struct device *self, void *aux) 82 { 83 struct pci_attach_args *pa = aux; 84 char devinfo[256]; 85 86 printf("\n"); 87 88 /* 89 * Just print out a description and set the ISA bus 90 * callback. 91 */ 92 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 93 printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, 94 PCI_REVISION(pa->pa_class)); 95 96 /* Set the ISA bus callback */ 97 config_defer(self, pcib_callback); 98 } 99 100 void 101 pcib_callback(struct device *self) 102 { 103 struct isabus_attach_args iba; 104 105 /* 106 * Attach the ISA bus behind this bridge. 107 */ 108 memset(&iba, 0, sizeof(iba)); 109 iba.iba_iot = &isa_io_bs_tag; 110 iba.iba_memt = &isa_mem_bs_tag; 111 #if NISADMA > 0 112 iba.iba_dmat = &isa_bus_dma_tag; 113 #endif 114 config_found_ia(self, "isabus", &iba, isabusprint); 115 } 116