sys/bus/pci/ignore_pci.c

   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  * $FreeBSD: src/sys/dev/pci/ignore_pci.c,v 1.4.28.1 2009/04/15 03:14:26 kensmith Exp $
  28  */
  29
  30 /*
  31  * 'Ignore' driver - eats devices that show up errnoeously on PCI
  32  * but shouldn't ever be listed or handled by a driver.
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/module.h>
  38 #include <sys/bus.h>
  39
  40 #include <bus/pci/pcivar.h>
  41
  42 static int      ignore_pci_probe(device_t dev);
  43
  44 static device_method_t ignore_pci_methods[] = {
  45     /* Device interface */
  46     DEVMETHOD(device_probe,             ignore_pci_probe),
  47     DEVMETHOD(device_attach,            bus_generic_attach),
  48     DEVMETHOD_END
  49 };
  50
  51 static driver_t ignore_pci_driver = {
  52     "ignore_pci",
  53     ignore_pci_methods,
  54     0,
  55 };
  56
  57 static devclass_t ignore_pci_devclass;
  58
  59 DRIVER_MODULE(ignore_pci, pci, ignore_pci_driver, ignore_pci_devclass, NULL, NULL);
  60
  61 static int
  62 ignore_pci_probe(device_t dev)
  63 {
  64     switch (pci_get_devid(dev)) {
  65     case 0x10001042ul:  /* SMC 37C665 */
  66         device_set_desc(dev, "ignored");
  67         device_quiet(dev);
  68         return(-10000);
  69     }
  70     return(ENXIO);
  71 }