Initial code for the TPM Lightweight Command Library.

src/platform/tpm_lite/src/include/tlcl.h

Index: src/platform/tpm_lite/src/include/tlcl.h
diff --git a/src/platform/tpm_lite/src/include/tlcl.h b/src/platform/tpm_lite/src/include/tlcl.h
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+/* 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.
+ */
+
+#ifndef TPM_LITE_TLCL_H_
+#define TPM_LITE_TLCL_H_
+
+#include <stdint.h>
+
+/* Call this first.
+ */
+void TlclLibinit(void);
+
+/* Sends a TPM_Startup(ST_CLEAR).  Note that this is a no-op for the emulator,
+ * because it runs this command during initialization.
+ */
+void TlclStartup(void);
+
+/* Run the self test.  Note---this is synchronous.  To run this in parallel
+ * with other firmware, use ContinueSelfTest.
+ */
+void TlclSelftestfull(void);
+
+/* Defines a space with permission [perm].  [index] is the index for the space,
+ * [size] the usable data size.  Errors are ignored.
+ */
+void TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size);
+
+/* Writes [length] bytes of [data] to space at [index].  The TPM error code is
+ * returned (0 for success).
+ */
+uint32_t TlclWrite(uint32_t index, uint8_t *data, uint32_t length);
+
+/* Reads [length] bytes from space at [index] into [data].  The TPM error code
+ * is returned (0 for success).
+ */
+uint32_t TlclRead(uint32_t index, uint8_t *data, uint32_t length);
+
+/* Write-locks space at [index].
+ */
+void TlclWriteLock(uint32_t index);
+
+/* Read-locks space at [index].
+ */
+void TlclReadLock(uint32_t index);
+
+/* Asserts physical presence in software.
+ */
+void TlclAssertPhysicalPresence(void);
+
+/* Sets the nvLocked bit.
+ */
+void TlclSetNvLocked(void);
+
+#endif  /* TPM_LITE_TLCL_H_ */