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diff --git a/tpm/tpm_backend.h b/tpm/tpm_backend.h
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+/*
+ * common TPM backend driver functions
+ *
+ * Copyright (c) 2012-2013 IBM Corporation
+ * Authors:
+ * Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#ifndef TPM_TPM_BACKEND_H
+#define TPM_TPM_BACKEND_H
+
+#include <glib.h>
+
+typedef struct TPMBackendThread {
+ GThreadPool *pool;
+} TPMBackendThread;
+
+void tpm_backend_thread_deliver_request(TPMBackendThread *tbt);
+void tpm_backend_thread_create(TPMBackendThread *tbt,
+ GFunc func, gpointer user_data);
+void tpm_backend_thread_end(TPMBackendThread *tbt);
+void tpm_backend_thread_tpm_reset(TPMBackendThread *tbt,
+ GFunc func, gpointer user_data);
+
+typedef enum TPMBackendCmd {
+ TPM_BACKEND_CMD_INIT = 1,
+ TPM_BACKEND_CMD_PROCESS_CMD,
+ TPM_BACKEND_CMD_END,
+ TPM_BACKEND_CMD_TPM_RESET,
+} TPMBackendCmd;
+
+#endif /* TPM_TPM_BACKEND_H */