| /* |
| * Copyright 2013 Google Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __DRIVERS_TPM_TPM_H__ |
| #define __DRIVERS_TPM_TPM_H__ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| enum { |
| TpmCmdCountOffset = 2, |
| TpmCmdOrdinalOffset = 6 |
| }; |
| |
| typedef struct TpmOps |
| { |
| int (*xmit)(struct TpmOps *me, const uint8_t *sendbuf, size_t send_size, |
| uint8_t *recvbuf, size_t *recv_len); |
| } TpmOps; |
| |
| void tpm_set_ops(TpmOps *ops); |
| |
| /* |
| * tpm_xmit() |
| * |
| * Send the requested data to the TPM and then try to get its response |
| * |
| * @sendbuf - buffer of the data to send |
| * @send_size size of the data to send |
| * @recvbuf - memory to save the response to |
| * @recv_len - pointer to the size of the response buffer, set to the number |
| * of received bytes on completion |
| * |
| * Returns 0 on success or -1 on failure. |
| */ |
| int tpm_xmit(const uint8_t *sendbuf, size_t send_size, |
| uint8_t *recvbuf, size_t *recv_len); |
| |
| #endif /* __DRIVERS_TPM_TPM_H__ */ |