diff options
Diffstat (limited to 'include/linux/tpm.h')
| -rw-r--r-- | include/linux/tpm.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/tpm.h b/include/linux/tpm.h new file mode 100644 index 00000000..fdc718ab --- /dev/null +++ b/include/linux/tpm.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2004,2007,2008 IBM Corporation + * + * Authors: + * Leendert van Doorn <leendert@watson.ibm.com> + * Dave Safford <safford@watson.ibm.com> + * Reiner Sailer <sailer@watson.ibm.com> + * Kylene Hall <kjhall@us.ibm.com> + * Debora Velarde <dvelarde@us.ibm.com> + * + * Maintained by: <tpmdd_devel@lists.sourceforge.net> + * + * Device driver for TCG/TCPA TPM (trusted platform module). + * Specifications at www.trustedcomputinggroup.org + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + * + */ +#ifndef __LINUX_TPM_H__ +#define __LINUX_TPM_H__ + +/* + * Chip num is this value or a valid tpm idx + */ +#define TPM_ANY_NUM 0xFFFF + +#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE) + +extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf); +extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash); +extern int tpm_send(u32 chip_num, void *cmd, size_t buflen); +#else +static inline int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf) { + return -ENODEV; +} +static inline int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) { + return -ENODEV; +} +static inline int tpm_send(u32 chip_num, void *cmd, size_t buflen) { + return -ENODEV; +} +#endif +#endif |