xref: /freebsd/sys/dev/pci/ignore_pci.c (revision c68eed82a3dcadf0c826e9e150f59769f4c44f24)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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 /*
32  * 'Ignore' driver - eats devices that show up errnoeously on PCI
33  * but shouldn't ever be listed or handled by a driver.
34  */
35 
36 #include <sys/param.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/bus.h>
40 
41 #include <dev/pci/pcivar.h>
42 
43 static int	ignore_pci_probe(device_t dev);
44 
45 static device_method_t ignore_pci_methods[] = {
46     /* Device interface */
47     DEVMETHOD(device_probe,		ignore_pci_probe),
48     DEVMETHOD(device_attach,		bus_generic_attach),
49     { 0, 0 }
50 };
51 
52 static driver_t ignore_pci_driver = {
53     "ignore_pci",
54     ignore_pci_methods,
55     0,
56 };
57 
58 DRIVER_MODULE(ignore_pci, pci, ignore_pci_driver, 0, 0);
59 
60 static int
61 ignore_pci_probe(device_t dev)
62 {
63     switch (pci_get_devid(dev)) {
64     case 0x10001042ul:	/* SMC 37C665 */
65 	device_set_desc(dev, "ignored");
66 	device_quiet(dev);
67 	return(-10000);
68     }
69     return(ENXIO);
70 }
71