1/*
2 * Copyright (c) 2008, 2009 Michael Shalayeff
3 * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
4 * All rights reserved.
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
15 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
16 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18#include <sys/cdefs.h>
19__FBSDID("$FreeBSD$");
20
21#include <sys/param.h>
22#include <sys/systm.h>
23#include <sys/kernel.h>
24#include <sys/malloc.h>
25#include <sys/proc.h>
26
27#include <sys/module.h>
28#include <sys/conf.h>
29#include <sys/uio.h>
30#include <sys/bus.h>
31
32#include <machine/bus.h>
33#include <sys/rman.h>
34#include <machine/resource.h>
35
36#include <machine/md_var.h>
37
38#include <isa/isareg.h>
39#include <isa/isavar.h>
40#include "tpmvar.h"
41
42#include "opt_acpi.h"
43#include <contrib/dev/acpica/include/acpi.h>
44#include <contrib/dev/acpica/include/accommon.h>
45#include <dev/acpica/acpivar.h>
46
47
48
49char *tpm_ids[] = {"ATM1200",  "BCM0102", "INTC0102", "SNO3504", "WEC1000",
50    "PNP0C31", NULL};
51
52static int
53tpm_acpi_probe(device_t dev)
54{
55	if (ACPI_ID_PROBE(device_get_parent(dev), dev, tpm_ids) != NULL) {
56		device_set_desc(dev, "Trusted Platform Module");
57		return BUS_PROBE_DEFAULT;
58	}
59
60	return ENXIO;
61}
62
63static device_method_t tpm_acpi_methods[] = {
64#if 0
65	/*In some case, TPM existence is found only in TPCA header*/
66	DEVMETHOD(device_identify,	tpm_acpi_identify),
67#endif
68
69	DEVMETHOD(device_probe,		tpm_acpi_probe),
70	DEVMETHOD(device_attach,	tpm_attach),
71	DEVMETHOD(device_detach,	tpm_detach),
72	DEVMETHOD(device_suspend,	tpm_suspend),
73	DEVMETHOD(device_resume,	tpm_resume),
74	{ 0, 0 }
75};
76static driver_t tpm_acpi_driver = {
77	"tpm", tpm_acpi_methods, sizeof(struct tpm_softc),
78};
79
80devclass_t tpm_devclass;
81DRIVER_MODULE(tpm, acpi, tpm_acpi_driver, tpm_devclass, 0, 0);
82