p64h2apic.c revision 1.13 
1/* $NetBSD: p64h2apic.c,v 1.13 2008/04/28 20:23:25 martin 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 1.13 2008/04/28 20:23:25 martin 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
52static int	p64h2match(struct device *, struct cfdata *, void *);
53static void	p64h2attach(struct device *, struct device *, void *);
54
55struct p64h2apic_softc {
56	struct device sc_dev;
57	pcitag_t sc_tag;
58};
59
60CFATTACH_DECL(p64h2apic, sizeof(struct p64h2apic_softc),
61    p64h2match, p64h2attach, NULL, NULL);
62
63int	p64h2print(void *, const char *pnp);
64
65
66static int
67p64h2match(struct device *parent, struct cfdata *match,
68    void *aux)
69{
70	struct pci_attach_args *pa = aux;
71
72	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
73	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82870P2_IOxAPIC)
74		return (1);
75
76	return (0);
77}
78
79static void
80p64h2attach(struct device *parent, struct device *self, void *aux)
81{
82	struct p64h2apic_softc *sc = (void *) self;
83	struct pci_attach_args *pa = aux;
84	char devinfo[256];
85
86	aprint_naive("\n");
87	aprint_normal("\n");
88
89	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
90	aprint_normal_dev(&sc->sc_dev, "%s (rev. 0x%02x)\n", devinfo,
91	    PCI_REVISION(pa->pa_class));
92
93	sc->sc_tag = pa->pa_tag;
94}
95