p64h2apic.c revision 1.6 
1/* $NetBSD: p64h2apic.c,v 1.6 2004/04/23 21:13:05 itojun 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 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39/*
40 * Driver for P64H2 IOxAPIC
41 *
42 * This is an ioapic which appears in PCI space.
43 * This driver currently does nothing useful but will eventually
44 * thwak the ioapic into working correctly.
45 */
46
47#include <sys/cdefs.h>
48__KERNEL_RCSID(0, "$NetBSD: p64h2apic.c,v 1.6 2004/04/23 21:13:05 itojun Exp $");
49
50#include <sys/param.h>
51#include <sys/systm.h>
52#include <sys/kernel.h>
53#include <sys/device.h>
54
55#include <dev/pci/pcireg.h>
56#include <dev/pci/pcivar.h>
57#include <dev/pci/pcidevs.h>
58
59static int	p64h2match __P((struct device *, struct cfdata *, void *));
60static void	p64h2attach __P((struct device *, struct device *, void *));
61
62struct p64h2apic_softc {
63	struct device sc_dev;
64	pcitag_t sc_tag;
65};
66
67CFATTACH_DECL(p64h2apic, sizeof(struct p64h2apic_softc),
68    p64h2match, p64h2attach, NULL, NULL);
69
70int	p64h2print __P((void *, const char *pnp));
71
72
73static int
74p64h2match(parent, match, aux)
75	struct device *parent;
76	struct cfdata *match;
77	void *aux;
78{
79	struct pci_attach_args *pa = aux;
80
81	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
82	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82870P2_IOxAPIC)
83		return (1);
84
85	return (0);
86}
87
88static void
89p64h2attach(parent, self, aux)
90	struct device *parent, *self;
91	void *aux;
92{
93	struct p64h2apic_softc *sc = (void *) self;
94	struct pci_attach_args *pa = aux;
95	char devinfo[256];
96
97	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
98	printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
99
100	sc->sc_tag = pa->pa_tag;
101}
102