34 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _TPM_DEV_H3#define _TPM_DEV_H4 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 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 24void tpm_common_open(struct file *file, struct tpm_chip *chip,25 struct file_priv *priv, struct tpm_space *space);26ssize_t tpm_common_read(struct file *file, char __user *buf,27 size_t size, loff_t *off);28ssize_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 32void tpm_common_release(struct file *file, struct file_priv *priv);33#endif34