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1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 * Use of this source code is governed by a BSD-style license that can be | 2 * Use of this source code is governed by a BSD-style license that can be |
3 * found in the LICENSE file. | 3 * found in the LICENSE file. |
4 */ | 4 */ |
5 | 5 |
6 /* TPM Lightweight Command Library. | 6 /* TPM Lightweight Command Library. |
7 * | 7 * |
8 * A low-level library for interfacing to TPM hardware or an emulator. | 8 * A low-level library for interfacing to TPM hardware or an emulator. |
9 */ | 9 */ |
10 | 10 |
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59 void TlclWriteLock(uint32_t index); | 59 void TlclWriteLock(uint32_t index); |
60 | 60 |
61 /* Read-locks space at [index]. | 61 /* Read-locks space at [index]. |
62 */ | 62 */ |
63 void TlclReadLock(uint32_t index); | 63 void TlclReadLock(uint32_t index); |
64 | 64 |
65 /* Asserts physical presence in software. | 65 /* Asserts physical presence in software. |
66 */ | 66 */ |
67 void TlclAssertPhysicalPresence(void); | 67 void TlclAssertPhysicalPresence(void); |
68 | 68 |
| 69 /* Turns off physical presence and locks it off until next reboot. |
| 70 */ |
| 71 uint32_t TlclLockPhysicalPresence(void); |
| 72 |
69 /* Sets the nvLocked bit. | 73 /* Sets the nvLocked bit. |
70 */ | 74 */ |
71 void TlclSetNvLocked(void); | 75 void TlclSetNvLocked(void); |
72 | 76 |
73 /* Returns 1 if the TPM is owned, 0 otherwise. | 77 /* Returns 1 if the TPM is owned, 0 otherwise. |
74 */ | 78 */ |
75 int TlclIsOwned(void); | 79 int TlclIsOwned(void); |
76 | 80 |
77 /* Issues a ForceClear. | 81 /* Issues a ForceClear. |
78 */ | 82 */ |
79 void TlclForceClear(void); | 83 void TlclForceClear(void); |
80 | 84 |
81 /* Issues a PhysicalEnable. | 85 /* Issues a SetEnable. |
82 */ | 86 */ |
83 void TlclPhysicalEnable(void); | 87 void TlclSetEnable(void); |
84 | 88 |
85 /* Issues a PhysicalSetDeactivated. Pass 0 to activate. Returns result code. | 89 /* Issues a SetDeactivated. Pass 0 to activate. Returns result code. |
86 */ | 90 */ |
87 int TlclPhysicalSetDeactivated(uint8_t flag); | 91 int TlclSetDeactivated(uint8_t flag); |
88 | 92 |
89 /* Gets some permanent flags of interest. (Add more here as needed.) | 93 /* Gets some permanent flags of interest. (Add more here as needed.) |
90 */ | 94 */ |
91 int TlclGetFlags(uint8_t* disable, uint8_t* deactivated); | 95 int TlclGetFlags(uint8_t* disable, uint8_t* deactivated); |
92 | 96 |
| 97 /* Sets the bGlobalLock flag, which only a reboot can clear. |
| 98 */ |
| 99 uint32_t TlclSetGlobalLock(void); |
| 100 |
93 #endif /* TPM_LITE_TLCL_H_ */ | 101 #endif /* TPM_LITE_TLCL_H_ */ |
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