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/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program 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 General Public License for more details.
*
* This driver checks if the PTT Bit is set correctly within the FWSTS4
* register. This is needed in order to use the iTPM, because we have to
* check prior using the interface that this bit is set correctly - otherwise
* it could work unpredictable. The bit should already be set if the Intel ME
* is still in the preboot phase.
*
*/
#include <stdint.h>
/*
* ptt_active
*
* Checks if the Intel PTT is active. If PTT is active, returns true,
* false otherwise.
*/
bool ptt_active(void);
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