ignore_pci.c revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
5 * Copyright (c) 2000 BSDi
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: stable/11/sys/dev/pci/ignore_pci.c 330897 2018-03-14 03:19:51Z eadler $");
32
33/*
34 * 'Ignore' driver - eats devices that show up errnoeously on PCI
35 * but shouldn't ever be listed or handled by a driver.
36 */
37
38#include <sys/param.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/bus.h>
42
43#include <dev/pci/pcivar.h>
44
45static int	ignore_pci_probe(device_t dev);
46
47static device_method_t ignore_pci_methods[] = {
48    /* Device interface */
49    DEVMETHOD(device_probe,		ignore_pci_probe),
50    DEVMETHOD(device_attach,		bus_generic_attach),
51    { 0, 0 }
52};
53
54static driver_t ignore_pci_driver = {
55    "ignore_pci",
56    ignore_pci_methods,
57    0,
58};
59
60static devclass_t ignore_pci_devclass;
61
62DRIVER_MODULE(ignore_pci, pci, ignore_pci_driver, ignore_pci_devclass, 0, 0);
63
64static int
65ignore_pci_probe(device_t dev)
66{
67    switch (pci_get_devid(dev)) {
68    case 0x10001042ul:	/* SMC 37C665 */
69	device_set_desc(dev, "ignored");
70	device_quiet(dev);
71	return(-10000);
72    }
73    return(ENXIO);
74}
75