sys/arch/i386/pci/p64h2apic.c

   1 /* $NetBSD: p64h2apic.c,v 1.14 2008/07/09 20:45:33 joerg Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Bill Sommerfeld.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Driver for P64H2 IOxAPIC
  34  *
  35  * This is an ioapic which appears in PCI space.
  36  * This driver currently does nothing useful but will eventually
  37  * thwak the ioapic into working correctly.
  38  */
  39
  40 #include <sys/cdefs.h>
  41 __KERNEL_RCSID(0, "$NetBSD: p64h2apic.c,v 1.14 2008/07/09 20:45:33 joerg Exp $");
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/kernel.h>
  46 #include <sys/device.h>
  47
  48 #include <dev/pci/pcireg.h>
  49 #include <dev/pci/pcivar.h>
  50 #include <dev/pci/pcidevs.h>
  51
  52 static int      p64h2match(device_t, cfdata_t, void *);
  53 static void     p64h2attach(device_t, device_t, void *);
  54
  55 struct p64h2apic_softc {
  56         pcitag_t sc_tag;
  57 };
  58
  59 CFATTACH_DECL_NEW(p64h2apic, sizeof(struct p64h2apic_softc),
  60     p64h2match, p64h2attach, NULL, NULL);
  61
  62 static int
  63 p64h2match(device_t parent, cfdata_t match, void *aux)
  64 {
  65         struct pci_attach_args *pa = aux;
  66
  67         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
  68             PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82870P2_IOxAPIC)
  69                 return (1);
  70
  71         return (0);
  72 }
  73
  74 static void
  75 p64h2attach(device_t parent, device_t self, void *aux)
  76 {
  77         struct p64h2apic_softc *sc = device_private(self);
  78         struct pci_attach_args *pa = aux;
  79         char devinfo[256];
  80
  81         aprint_naive("\n");
  82         aprint_normal("\n");
  83
  84         pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
  85         aprint_normal_dev(self, "%s (rev. 0x%02x)\n", devinfo,
  86             PCI_REVISION(pa->pa_class));
  87
  88         sc->sc_tag = pa->pa_tag;
  89 }