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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
ecb38e2f JB |
2 | #ifndef _TPM_DEV_H |
3 | #define _TPM_DEV_H | |
4 | ||
5 | #include "tpm.h" | |
6 | ||
7 | struct file_priv { | |
8 | struct tpm_chip *chip; | |
9 | ||
10 | /* Data passed to and from the tpm via the read/write calls */ | |
11 | atomic_t data_pending; | |
12 | struct mutex buffer_mutex; | |
13 | ||
14 | struct timer_list user_read_timer; /* user needs to claim result */ | |
15 | struct work_struct work; | |
16 | ||
17 | u8 data_buffer[TPM_BUFSIZE]; | |
18 | }; | |
19 | ||
20 | void tpm_common_open(struct file *file, struct tpm_chip *chip, | |
21 | struct file_priv *priv); | |
22 | ssize_t tpm_common_read(struct file *file, char __user *buf, | |
23 | size_t size, loff_t *off); | |
24 | ssize_t tpm_common_write(struct file *file, const char __user *buf, | |
25 | size_t size, loff_t *off, struct tpm_space *space); | |
26 | void tpm_common_release(struct file *file, struct file_priv *priv); | |
27 | ||
28 | #endif |