xref: /freebsd/sys/dev/pci/ignore_pci.c (revision aa0a1e58)
1 /*-
2  * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
3  * Copyright (c) 2000 BSDi
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30 
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 static devclass_t ignore_pci_devclass;
59 
60 DRIVER_MODULE(ignore_pci, pci, ignore_pci_driver, ignore_pci_devclass, 0, 0);
61 
62 static int
63 ignore_pci_probe(device_t dev)
64 {
65     switch (pci_get_devid(dev)) {
66     case 0x10001042ul:	/* SMC 37C665 */
67 	device_set_desc(dev, "ignored");
68 	device_quiet(dev);
69 	return(-10000);
70     }
71     return(ENXIO);
72 }
73