1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _TPM_DEV_H |
3 | #define _TPM_DEV_H |
4 | |
5 | #include <linux/poll.h> |
6 | #include "tpm.h" |
7 | |
8 | struct file_priv { |
9 | struct tpm_chip *chip; |
10 | struct tpm_space *space; |
11 | |
12 | struct mutex buffer_mutex; |
13 | struct timer_list user_read_timer; /* user needs to claim result */ |
14 | struct work_struct timeout_work; |
15 | struct work_struct async_work; |
16 | wait_queue_head_t async_wait; |
17 | ssize_t response_length; |
18 | bool response_read; |
19 | bool command_enqueued; |
20 | |
21 | u8 data_buffer[TPM_BUFSIZE]; |
22 | }; |
23 | |
24 | void tpm_common_open(struct file *file, struct tpm_chip *chip, |
25 | struct file_priv *priv, struct tpm_space *space); |
26 | ssize_t tpm_common_read(struct file *file, char __user *buf, |
27 | size_t size, loff_t *off); |
28 | ssize_t tpm_common_write(struct file *file, const char __user *buf, |
29 | size_t size, loff_t *off); |
30 | __poll_t tpm_common_poll(struct file *file, poll_table *wait); |
31 | |
32 | void tpm_common_release(struct file *file, struct file_priv *priv); |
33 | #endif |
34 | |