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fc70d72aaa
Refactor and restructure reference code into individual self-contain modules. I have revamped the way the code is structured to make it easy to determine which parts belong in the firmware and which are used by userland tools. common/ - common utilities and stub functions (Firmware) cryptolib/ - crypto library (Firmware) misclibs/ - miscellaneous userland libraries (Userland) sctips/ - Miscellaenous scripts (Userland) tests/ - Tests (Userland) vfirmware/ - Verified Firmware Implementation vfirmware/firmware_image_fw.c (Firmware) vfirmware/firmware_image.c (Userland) vkernel/ - Verified Kernel Implementation vkernel/kernel_image_fw.c (Firmware) vkernel/kernel_image.c (Userland) Review URL: http://codereview.chromium.org/1581005
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* TPM Lightweight Command Library.
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*
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* A low-level library for interfacing to TPM hardware or an emulator.
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*/
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#ifndef TPM_LITE_TLCL_H_
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#define TPM_LITE_TLCL_H_
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* Call this first.
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*/
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void TlclLibinit(void);
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/* Sends a TPM_Startup(ST_CLEAR). Note that this is a no-op for the emulator,
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* because it runs this command during initialization.
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*/
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void TlclStartup(void);
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/* Run the self test. Note---this is synchronous. To run this in parallel
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* with other firmware, use ContinueSelfTest.
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*/
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void TlclSelftestfull(void);
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/* Defines a space with permission [perm]. [index] is the index for the space,
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* [size] the usable data size. Errors are ignored.
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*/
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void TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size);
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/* Writes [length] bytes of [data] to space at [index]. The TPM error code is
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* returned (0 for success).
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*/
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uint32_t TlclWrite(uint32_t index, uint8_t *data, uint32_t length);
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/* Reads [length] bytes from space at [index] into [data]. The TPM error code
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* is returned (0 for success).
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*/
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uint32_t TlclRead(uint32_t index, uint8_t *data, uint32_t length);
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/* Write-locks space at [index].
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*/
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void TlclWriteLock(uint32_t index);
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/* Read-locks space at [index].
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*/
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void TlclReadLock(uint32_t index);
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/* Asserts physical presence in software.
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*/
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void TlclAssertPhysicalPresence(void);
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/* Sets the nvLocked bit.
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*/
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void TlclSetNvLocked(void);
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/* Returns 1 if the TPM is owned, 0 otherwise.
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*/
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int TlclIsOwned(void);
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/* Issues a ForceClear.
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*/
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void TlclForceClear(void);
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/* Issues a PhysicalEnable.
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*/
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void TlclPhysicalEnable(void);
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/* Issues a PhysicalSetDeactivated. Pass 0 to activate. Returns result code.
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*/
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int TlclPhysicalSetDeactivated(uint8_t flag);
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/* Gets some permanent flags of interest. (Add more here as needed.)
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*/
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int TlclGetFlags(uint8_t* disable, uint8_t* deactivated);
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#endif /* TPM_LITE_TLCL_H_ */
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