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
19#include <sys/cdefs.h>
20__FBSDID("$FreeBSD$");
21
22#include <sys/param.h>
23#include <sys/systm.h>
24#include <sys/kernel.h>
25#include <sys/malloc.h>
26#include <sys/proc.h>
27
28#ifdef __FreeBSD__
29#include <sys/module.h>
30#include <sys/conf.h>
31#include <sys/uio.h>
32#include <sys/bus.h>
33
34#include <machine/bus.h>
35#include <sys/rman.h>
36#include <machine/resource.h>
37
38#include <machine/md_var.h>
39
40#include <isa/isareg.h>
41#include <isa/isavar.h>
42#else
43#include <sys/device.h>
44
45#include <machine/cpu.h>
46#include <machine/bus.h>
47#include <machine/intr.h>
48#include <machine/conf.h>
49
50#include <dev/isa/isareg.h>
51#include <dev/isa/isavar.h>
52#endif
53#include "tpmvar.h"
54
55static int
56tpm_isa_probe(device_t dev)
57{
58	bus_space_tag_t iot;
59	bus_space_handle_t ioh;
60	struct resource *mem_res;
61	int rv, mem_rid;
62
63	mem_rid = 0;
64	mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid,
65	    RF_ACTIVE);
66	if (mem_res == NULL)
67		return (ENXIO);
68	iot = rman_get_bustag(mem_res);
69	ioh = rman_get_bushandle(mem_res);
70
71	if ((rv = tpm_tis12_probe(iot, ioh)))
72		device_set_desc(dev, "Trusted Platform Module");
73
74	bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res);
75	return rv ? 0 : ENXIO;
76}
77
78static device_method_t tpm_methods[] = {
79#if 0
80	DEVMETHOD(device_identify,	tpm_identify),
81#endif
82	DEVMETHOD(device_probe,		tpm_isa_probe),
83	DEVMETHOD(device_attach,	tpm_attach),
84	DEVMETHOD(device_detach,	tpm_detach),
85	DEVMETHOD(device_suspend,	tpm_suspend),
86	DEVMETHOD(device_resume,	tpm_resume),
87	{ 0, 0 }
88};
89
90static driver_t tpm_driver = {
91	"tpm", tpm_methods, sizeof(struct tpm_softc),
92};
93
94static devclass_t tpm_devclass;
95
96DRIVER_MODULE(tpm, isa, tpm_driver, tpm_devclass, 0, 0);
97