2 * Copyright (c) 2008, 2009 Michael Shalayeff
3 * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
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.
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.
18 #include <sys/cdefs.h>
19 __FBSDID("$FreeBSD$");
21 #include <sys/param.h>
22 #include <sys/systm.h>
23 #include <sys/kernel.h>
24 #include <sys/malloc.h>
27 #include <sys/module.h>
32 #include <machine/bus.h>
34 #include <machine/resource.h>
36 #include <machine/md_var.h>
38 #include <isa/isareg.h>
39 #include <isa/isavar.h>
43 #include <contrib/dev/acpica/include/acpi.h>
44 #include <contrib/dev/acpica/include/accommon.h>
45 #include <dev/acpica/acpivar.h>
49 char *tpm_ids[] = {"ATM1200", "BCM0102", "INTC0102", "SNO3504", "WEC1000",
53 tpm_acpi_probe(device_t dev)
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;
63 static device_method_t tpm_acpi_methods[] = {
65 /*In some case, TPM existance is found only in TPCA header*/
66 DEVMETHOD(device_identify, tpm_acpi_identify),
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),
76 static driver_t tpm_acpi_driver = {
77 "tpm", tpm_acpi_methods, sizeof(struct tpm_softc),
80 devclass_t tpm_devclass;
81 DRIVER_MODULE(tpm, acpi, tpm_acpi_driver, tpm_devclass, 0, 0);