| Rajiv Andrade | 659aaf2 | 2009-02-02 15:23:44 -0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004,2007,2008 IBM Corporation |
| 3 | * |
| 4 | * Authors: |
| 5 | * Leendert van Doorn <leendert@watson.ibm.com> |
| 6 | * Dave Safford <safford@watson.ibm.com> |
| 7 | * Reiner Sailer <sailer@watson.ibm.com> |
| 8 | * Kylene Hall <kjhall@us.ibm.com> |
| 9 | * Debora Velarde <dvelarde@us.ibm.com> |
| 10 | * |
| 11 | * Maintained by: <tpmdd_devel@lists.sourceforge.net> |
| 12 | * |
| 13 | * Device driver for TCG/TCPA TPM (trusted platform module). |
| 14 | * Specifications at www.trustedcomputinggroup.org |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or |
| 17 | * modify it under the terms of the GNU General Public License as |
| 18 | * published by the Free Software Foundation, version 2 of the |
| 19 | * License. |
| 20 | * |
| 21 | */ |
| 22 | #ifndef __LINUX_TPM_H__ |
| 23 | #define __LINUX_TPM_H__ |
| 24 | |
| 25 | /* |
| 26 | * Chip num is this value or a valid tpm idx |
| 27 | */ |
| 28 | #define TPM_ANY_NUM 0xFFFF |
| 29 | |
| Randy Dunlap | ff76ec1 | 2009-10-28 12:26:39 -0700 | [diff] [blame] | 30 | #if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE) |
| Rajiv Andrade | 659aaf2 | 2009-02-02 15:23:44 -0200 | [diff] [blame] | 31 | |
| 32 | extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf); |
| 33 | extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash); |
| Mimi Zohar | c749ba9 | 2010-11-23 18:54:16 -0500 | [diff] [blame] | 34 | extern int tpm_send(u32 chip_num, void *cmd, size_t buflen); |
| Mimi Zohar | d6ba452 | 2009-10-26 09:26:18 -0400 | [diff] [blame] | 35 | #else |
| 36 | static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) { |
| 37 | return -ENODEV; |
| 38 | } |
| 39 | static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) { |
| 40 | return -ENODEV; |
| 41 | } |
| Mimi Zohar | c749ba9 | 2010-11-23 18:54:16 -0500 | [diff] [blame] | 42 | static inline int tpm_send(u32 chip_num, void *cmd, size_t buflen) { |
| 43 | return -ENODEV; |
| 44 | } |
| Rajiv Andrade | 659aaf2 | 2009-02-02 15:23:44 -0200 | [diff] [blame] | 45 | #endif |
| 46 | #endif |