Cherry-pick vboot_reference files from TOT to support crossystem

firmware/include/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 17 matching lines @@
 
 /* Sets the log level.  0 is quietest.
  */
 void TlclSetLogLevel(int level);
 
 /* Sends a TPM_Startup(ST_CLEAR).  The TPM error code is returned (0
  * for success).
  */
 uint32_t TlclStartup(void);
 
+/* Save the TPM state.  Normally done by the kernel before a suspend, included
+ * here for tests.  The TPM error code is returned (0 for success).
+ */
+uint32_t TlclSaveState(void);
+
 /* Resumes by sending a TPM_Startup(ST_STATE).  The TPM error code is returned
  * (0 for success).
  */
 uint32_t TlclResume(void);
 
 /* Runs the self test.  Note---this is synchronous.  To run this in parallel
  * with other firmware, use ContinueSelfTest.  The TPM error code is returned.
  */
 uint32_t TlclSelfTestFull(void);
 
@@ skipping 72 matching lines @@
 uint32_t TlclGetFlags(uint8_t* disable, uint8_t* deactivated,
                       uint8_t* nvlocked);
 
 /* 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);
+uint32_t TlclExtend(int pcr_num, const 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);
 
 /* Gets the entire set of permanent flags.
  */
 uint32_t TlclGetPermanentFlags(TPM_PERMANENT_FLAGS* pflags);
 
 /* Gets the entire set of volatile (ST_CLEAR) flags.
  */
 uint32_t TlclGetSTClearFlags(TPM_STCLEAR_FLAGS* pflags);
 
 #endif  /* TPM_LITE_TLCL_H_ */