amdnb_misc.c revision 1.1 
1/*	$NetBSD: amdnb_misc.c,v 1.1 2012/04/13 13:11:17 cegger Exp $ */
2/*
3 * Copyright (c) 2012 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Christoph Egger.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32__KERNEL_RCSID(0, "$NetBSD: amdnb_misc.c,v 1.1 2012/04/13 13:11:17 cegger Exp $");
33
34#include <sys/param.h>
35#include <sys/device.h>
36
37#include <dev/pci/pcireg.h>
38#include <dev/pci/pcivar.h>
39#include <dev/pci/pcidevs.h>
40
41static int amdnb_misc_match(device_t, cfdata_t match, void *);
42static void amdnb_misc_attach(device_t, device_t, void *);
43static int amdnb_misc_detach(device_t, int);
44
45CFATTACH_DECL_NEW(amdnb_misc, 0,
46    amdnb_misc_match, amdnb_misc_attach, amdnb_misc_detach, NULL);
47
48
49static int
50amdnb_misc_match(device_t parent, cfdata_t match, void *aux)
51{
52	struct pci_attach_args *pa = aux;
53
54	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_AMD)
55		return 0;
56
57	switch (PCI_PRODUCT(pa->pa_id)) {
58	case PCI_PRODUCT_AMD_AMD64_MISC:
59	case PCI_PRODUCT_AMD_AMD64_F10_MISC:
60	case PCI_PRODUCT_AMD_AMD64_F11_MISC:
61	case PCI_PRODUCT_AMD_F14_NB:		/* Family 12h, too */
62	case PCI_PRODUCT_AMD_F15_MISC:
63		break;
64	default:
65		return 0;
66	}
67
68	return 2;	/* supercede pchb(4) */
69}
70
71static int
72amdnb_misc_search(device_t parent, cfdata_t cf, const int *locs, void *aux)
73{
74	if (config_match(parent, cf, aux))
75		config_attach_loc(parent, cf, locs, aux, NULL);
76
77	return 0;
78}
79
80static void
81amdnb_misc_attach(device_t parent, device_t self, void *aux)
82{
83	aprint_naive("\n");
84	aprint_normal(": AMD NB Misc Configuration\n");
85
86	if (!pmf_device_register(self, NULL, NULL))
87		aprint_error_dev(self, "couldn't establish power handler\n");
88
89	config_search_loc(amdnb_misc_search, self, "amdnb_miscbus", NULL, aux);
90	return;
91}
92
93static int
94amdnb_misc_detach(device_t self, int flags)
95{
96	int rv;
97
98	rv = config_detach_children(self, flags);
99	if (rv != 0)
100		return rv;
101
102	pmf_device_deregister(self);
103	return rv;
104}
105