Add PhysicalDisable command.

src/tlcl/tlcl.h

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /* TPM Lightweight Command Library.
  *
  * A low-level library for interfacing to TPM hardware or an emulator.
  */
 
@@ skipping 109 matching lines @@
 uint32_t TlclSetNvLocked(void);
 
 /* Returns 1 if the TPM is owned, 0 otherwise.
  */
 int TlclIsOwned(void);
 
 /* Issues a ForceClear.  The TPM error code is returned.
  */
 uint32_t TlclForceClear(void);
 
-/* Issues a SetEnable.  The TPM error code is returned.
+/* Issues a PhysicalEnable.  The TPM error code is returned.
  */
 uint32_t TlclSetEnable(void);
 
+/* Issues a PhysicalDisable.  The TPM error code is returned.
+ */
+uint32_t TlclClearEnable(void);
+
 /* Issues a SetDeactivated.  Pass 0 to activate.  Returns result code.
  */
 uint32_t TlclSetDeactivated(uint8_t flag);
 
 /* Gets flags of interest.  (Add more here as needed.)  The TPM error code is
  * returned.
  */
 uint32_t TlclGetFlags(uint8_t* disable, uint8_t* deactivated);
 
 /* Sets the bGlobalLock flag, which only a reboot can clear.  The TPM error
  * code is returned.
  */
 uint32_t TlclSetGlobalLock(void);
 
 /* Performs a TPM_Extend.
  */
 uint32_t TlclExtend(int pcr_num, uint8_t* in_digest, uint8_t* out_digest);
 
 /* Gets the permission bits for the NVRAM space with |index|.
  */
 uint32_t TlclGetPermissions(uint32_t index, uint32_t* permissions);
 
 #endif  /* TPM_LITE_TLCL_H_ */