1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* $NetBSD: tpm_acpi.c,v 1.4 2014/03/01 16:59:41 maxv Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 2008, 2009 Michael Shalayeff
* Copyright (c) 2009, 2010 Hans-Jörg Höxer
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* ACPI attachment for the Infineon SLD 9630 TT 1.1 and SLB 9635 TT 1.2
* trusted platform module. See www.trustedcomputinggroup.org
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tpm_acpi.c,v 1.4 2014/03/01 16:59:41 maxv Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <sys/pmf.h>
#include <dev/ic/tpmreg.h>
#include <dev/ic/tpmvar.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/isa/isavar.h>
#define _COMPONENT ACPI_RESOURCE_COMPONENT
ACPI_MODULE_NAME ("tpm_acpi")
static int tpm_acpi_match(device_t, cfdata_t, void *);
static void tpm_acpi_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(tpm_acpi, sizeof(struct tpm_softc), tpm_acpi_match,
tpm_acpi_attach, NULL, NULL);
/*
* Supported device IDs
*/
static const char * const tpm_acpi_ids[] = {
"IFX0101",
"IFX0102",
NULL
};
extern struct cfdriver tpm_cd;
static int
tpm_acpi_match(device_t parent, cfdata_t match, void *aux)
{
struct acpi_attach_args *aa = aux;
if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
return 0;
/* There can be only one. */
if (tpm_cd.cd_devs && tpm_cd.cd_devs[0])
return 0;
#ifdef notyet
return acpi_match_hid(aa->aa_node->ad_devinfo, tpm_acpi_ids);
#else
return 0;
#endif
}
static void
tpm_acpi_attach(device_t parent, device_t self, void *aux)
{
struct tpm_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_io *io;
struct acpi_mem *mem;
struct acpi_irq *irq;
bus_addr_t base;
bus_addr_t size;
int rv, inum;
sc->sc_dev = self;
/* Parse our resources */
rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", &res,
&acpi_resource_parse_ops_default);
if (ACPI_FAILURE(rv)) {
aprint_error_dev(sc->sc_dev, "cannot parse resources %d\n", rv);
return;
}
io = acpi_res_io(&res, 0);
if (io && tpm_legacy_probe(aa->aa_iot, io->ar_base)) {
sc->sc_bt = aa->aa_iot;
base = io->ar_base;
size = io->ar_length;
sc->sc_batm = aa->aa_iot;
sc->sc_init = tpm_legacy_init;
sc->sc_start = tpm_legacy_start;
sc->sc_read = tpm_legacy_read;
sc->sc_write = tpm_legacy_write;
sc->sc_end = tpm_legacy_end;
mem = NULL;
} else {
mem = acpi_res_mem(&res, 0);
if (mem == NULL) {
aprint_error_dev(sc->sc_dev, "cannot find mem\n");
goto out;
}
if (mem->ar_length != TPM_SIZE) {
aprint_error_dev(sc->sc_dev,
"wrong size mem %u != %u\n",
mem->ar_length, TPM_SIZE);
goto out;
}
base = mem->ar_base;
size = mem->ar_length;
sc->sc_bt = aa->aa_memt;
sc->sc_init = tpm_tis12_init;
sc->sc_start = tpm_tis12_start;
sc->sc_read = tpm_tis12_read;
sc->sc_write = tpm_tis12_write;
sc->sc_end = tpm_tis12_end;
}
if (bus_space_map(sc->sc_bt, base, size, 0, &sc->sc_bh)) {
aprint_error_dev(sc->sc_dev, "cannot map registers\n");
goto out;
}
if (mem && !tpm_tis12_probe(sc->sc_bt, sc->sc_bh)) {
aprint_error_dev(sc->sc_dev, "1.2 probe failed\n");
goto out1;
}
irq = acpi_res_irq(&res, 0);
if (irq == NULL)
inum = -1;
else
inum = irq->ar_irq;
if ((rv = (*sc->sc_init)(sc, inum, device_xname(sc->sc_dev))) != 0) {
aprint_error_dev(sc->sc_dev, "cannot init device %d\n", rv);
goto out1;
}
if (inum != -1 &&
(sc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq,
IST_EDGE, IPL_TTY, tpm_intr, sc)) == NULL) {
aprint_error_dev(sc->sc_dev, "cannot establish interrupt\n");
goto out1;
}
if (!pmf_device_register(sc->sc_dev, tpm_suspend, tpm_resume))
aprint_error_dev(sc->sc_dev, "Cannot set power mgmt handler\n");
return;
out1:
bus_space_unmap(sc->sc_bt, sc->sc_bh, size);
out:
acpi_resource_cleanup(&res);
}
|