/*
 * Public TPM functions
 *
 * Copyright (C) 2011-2013 IBM Corporation
 *
 * Authors:
 *  Stefan Berger    <stefanb@us.ibm.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */
#ifndef QEMU_TPM_H
#define QEMU_TPM_H

#include "qemu/option.h"
#include "qom/object.h"

typedef struct TPMState TPMState;

int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
int tpm_init(void);
void tpm_cleanup(void);

typedef enum  TPMVersion {
    TPM_VERSION_UNSPEC = 0,
    TPM_VERSION_1_2 = 1,
    TPM_VERSION_2_0 = 2,
} TPMVersion;

TPMVersion tpm_tis_get_tpm_version(Object *obj);

#define TYPE_TPM_TIS                "tpm-tis"

static inline TPMVersion tpm_get_version(void)
{
#ifdef CONFIG_TPM
    Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);

    if (obj) {
        return tpm_tis_get_tpm_version(obj);
    }
#endif
    return TPM_VERSION_UNSPEC;
}

#endif /* QEMU_TPM_H */