Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
8struct file_priv {
9 struct tpm_chip *chip;
10 struct tpm_space *space;
11
12 /* Holds the amount of data passed or an error code from async op */
13 ssize_t data_pending;
14 struct mutex buffer_mutex;
15
16 struct timer_list user_read_timer; /* user needs to claim result */
17 struct work_struct timeout_work;
18 struct work_struct async_work;
19 wait_queue_head_t async_wait;
20 bool command_enqueued;
21
22 u8 data_buffer[TPM_BUFSIZE];
23};
24
25void tpm_common_open(struct file *file, struct tpm_chip *chip,
26 struct file_priv *priv, struct tpm_space *space);
27ssize_t tpm_common_read(struct file *file, char __user *buf,
28 size_t size, loff_t *off);
29ssize_t tpm_common_write(struct file *file, const char __user *buf,
30 size_t size, loff_t *off);
31__poll_t tpm_common_poll(struct file *file, poll_table *wait);
32
33void tpm_common_release(struct file *file, struct file_priv *priv);
34#endif