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