Merge remote-tracking branch 'remotes/xtensa/tags/20181030-xtensa' into staging
[qemu/ar7.git] / include / sysemu / tpm.h
blob17a97ed77ad243509d07192b5730577dc13ae2d7
1 /*
2 * Public TPM functions
4 * Copyright (C) 2011-2013 IBM Corporation
6 * Authors:
7 * Stefan Berger <stefanb@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
12 #ifndef QEMU_TPM_H
13 #define QEMU_TPM_H
15 #include "qapi/qapi-types-tpm.h"
16 #include "qom/object.h"
18 int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
19 void tpm_init(void);
20 void tpm_cleanup(void);
22 typedef enum TPMVersion {
23 TPM_VERSION_UNSPEC = 0,
24 TPM_VERSION_1_2 = 1,
25 TPM_VERSION_2_0 = 2,
26 } TPMVersion;
28 #define TYPE_TPM_IF "tpm-if"
29 #define TPM_IF_CLASS(klass) \
30 OBJECT_CLASS_CHECK(TPMIfClass, (klass), TYPE_TPM_IF)
31 #define TPM_IF_GET_CLASS(obj) \
32 OBJECT_GET_CLASS(TPMIfClass, (obj), TYPE_TPM_IF)
33 #define TPM_IF(obj) \
34 INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF)
36 typedef struct TPMIf {
37 Object parent_obj;
38 } TPMIf;
40 typedef struct TPMIfClass {
41 InterfaceClass parent_class;
43 enum TpmModel model;
44 void (*request_completed)(TPMIf *obj, int ret);
45 enum TPMVersion (*get_version)(TPMIf *obj);
46 } TPMIfClass;
48 #define TYPE_TPM_TIS "tpm-tis"
49 #define TYPE_TPM_CRB "tpm-crb"
51 #define TPM_IS_TIS(chr) \
52 object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS)
53 #define TPM_IS_CRB(chr) \
54 object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
56 /* returns NULL unless there is exactly one TPM device */
57 static inline TPMIf *tpm_find(void)
59 Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL);
61 return TPM_IF(obj);
64 static inline TPMVersion tpm_get_version(TPMIf *ti)
66 if (!ti) {
67 return TPM_VERSION_UNSPEC;
70 return TPM_IF_GET_CLASS(ti)->get_version(ti);
73 #endif /* QEMU_TPM_H */