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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 |
11 #ifndef TPM_LITE_TLCL_H_ | 11 #ifndef TPM_LITE_TLCL_H_ |
12 #define TPM_LITE_TLCL_H_ | 12 #define TPM_LITE_TLCL_H_ |
13 | 13 |
14 #include <stdarg.h> | 14 #include <stdarg.h> |
15 #include <stdint.h> | 15 #include <stdint.h> |
16 #include <stdio.h> | 16 #include <stdio.h> |
17 #include <stdlib.h> | 17 #include <stdlib.h> |
18 | 18 |
19 #define POSSIBLY_UNUSED __attribute__((unused)) | 19 #define POSSIBLY_UNUSED __attribute__((unused)) |
20 | 20 |
21 #ifdef __STRICT_ANSI__ | 21 #ifdef __STRICT_ANSI__ |
22 #define INLINE | 22 #define INLINE |
23 #else | 23 #else |
24 #define INLINE inline | 24 #define INLINE inline |
25 #endif | 25 #endif |
26 | 26 |
27 /* Outputs an error message and quits the program. | 27 /* Outputs an error message and quits the program. |
28 */ | 28 */ |
| 29 POSSIBLY_UNUSED |
29 static void error(const char *format, ...) { | 30 static void error(const char *format, ...) { |
30 va_list ap; | 31 va_list ap; |
31 va_start(ap, format); | 32 va_start(ap, format); |
32 fprintf(stderr, "ERROR: "); | 33 fprintf(stderr, "ERROR: "); |
33 vfprintf(stderr, format, ap); | 34 vfprintf(stderr, format, ap); |
34 va_end(ap); | 35 va_end(ap); |
35 exit(1); | 36 exit(1); |
36 } | 37 } |
37 | 38 |
38 /* Outputs a warning and continues. | 39 /* Outputs a warning and continues. |
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92 void TlclAssertPhysicalPresence(void); | 93 void TlclAssertPhysicalPresence(void); |
93 | 94 |
94 /* Sets the nvLocked bit. | 95 /* Sets the nvLocked bit. |
95 */ | 96 */ |
96 void TlclSetNvLocked(void); | 97 void TlclSetNvLocked(void); |
97 | 98 |
98 /* Returns 1 if the TPM is owned, 0 otherwise. | 99 /* Returns 1 if the TPM is owned, 0 otherwise. |
99 */ | 100 */ |
100 int TlclIsOwned(void); | 101 int TlclIsOwned(void); |
101 | 102 |
| 103 /* Issues a ForceClear. |
| 104 */ |
| 105 void TlclForceClear(void); |
| 106 |
| 107 /* Issues a PhysicalEnable. |
| 108 */ |
| 109 void TlclPhysicalEnable(void); |
| 110 |
| 111 /* Issues a PhysicalSetDeactivated. Pass 0 to activate. Returns result code. |
| 112 */ |
| 113 int TlclPhysicalSetDeactivated(uint8_t flag); |
| 114 |
| 115 /* Gets some permanent flags of interest. (Add more here as needed.) |
| 116 */ |
| 117 int TlclGetFlags(uint8_t* disable, uint8_t* deactivated); |
| 118 |
102 #endif /* TPM_LITE_TLCL_H_ */ | 119 #endif /* TPM_LITE_TLCL_H_ */ |
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