2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 * PCI:ISA bridge support
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/module.h>
44 #include <isa/isavar.h>
45 #include <dev/pci/pcivar.h>
46 #include <dev/pci/pcireg.h>
48 static int isab_probe(device_t dev);
50 static device_method_t isab_methods[] = {
51 /* Device interface */
52 DEVMETHOD(device_probe, isab_probe),
53 DEVMETHOD(device_attach, isab_attach),
54 DEVMETHOD(device_detach, bus_generic_detach),
55 DEVMETHOD(device_shutdown, bus_generic_shutdown),
56 DEVMETHOD(device_suspend, bus_generic_suspend),
57 DEVMETHOD(device_resume, bus_generic_resume),
60 DEVMETHOD(bus_print_child, bus_generic_print_child),
61 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
62 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
63 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
64 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
65 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
66 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
71 static driver_t isab_driver = {
77 DRIVER_MODULE(isab, pci, isab_driver, isab_devclass, 0, 0);
80 * XXX we need to add a quirk list here for bridges that don't correctly
84 isab_probe(device_t dev)
89 * Try for a generic match based on class/subclass.
91 if ((pci_get_class(dev) == PCIC_BRIDGE) &&
92 (pci_get_subclass(dev) == PCIS_BRIDGE_ISA)) {
96 * These are devices that we *know* are PCI:ISA bridges.
97 * Sometimes, however, they don't report themselves as
98 * such. Check in case one of them is pretending to be
101 switch (pci_get_devid(dev)) {
102 case 0x04848086: /* Intel 82378ZB/82378IB */
103 case 0x122e8086: /* Intel 82371FB */
104 case 0x70008086: /* Intel 82371SB */
105 case 0x71108086: /* Intel 82371AB */
106 case 0x71988086: /* Intel 82443MX */
107 case 0x24108086: /* Intel 82801AA (ICH) */
108 case 0x24208086: /* Intel 82801AB (ICH0) */
109 case 0x24408086: /* Intel 82801AB (ICH2) */
110 case 0x00061004: /* VLSI 82C593 */
111 case 0x05861106: /* VIA 82C586 */
112 case 0x05961106: /* VIA 82C596 */
113 case 0x06861106: /* VIA 82C686 */
114 case 0x153310b9: /* AcerLabs M1533 */
115 case 0x154310b9: /* AcerLabs M1543 */
116 case 0x00081039: /* SiS 85c503 */
117 case 0x00001078: /* Cyrix Cx5510 */
118 case 0x01001078: /* Cyrix Cx5530 */
119 case 0xc7001045: /* OPTi 82C700 (FireStar) */
120 case 0x00011033: /* NEC 0001 (C-bus) */
121 case 0x002c1033: /* NEC 002C (C-bus) */
122 case 0x003b1033: /* NEC 003B (C-bus) */
123 case 0x886a1060: /* UMC UM8886 ISA */
124 case 0x02001166: /* ServerWorks IB6566 PCI */
126 printf("PCI-ISA bridge with incorrect subclass 0x%x\n",
127 pci_get_subclass(dev));
137 device_set_desc(dev, "PCI-ISA bridge");