/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _TPM_DEV_H #define _TPM_DEV_H #include <linux/poll.h> #include "tpm.h" struct file_priv { struct tpm_chip *chip; struct tpm_space *space; /* Holds the amount of data passed or an error code from async op */ ssize_t data_pending; struct mutex buffer_mutex; struct timer_list user_read_timer; /* user needs to claim result */ struct work_struct timeout_work; struct work_struct async_work; wait_queue_head_t async_wait; bool command_enqueued; u8 data_buffer[TPM_BUFSIZE]; }; void tpm_common_open(struct file *file, struct tpm_chip *chip, struct file_priv *priv, struct tpm_space *space); ssize_t tpm_common_read(struct file *file, char __user *buf, size_t size, loff_t *off); ssize_t tpm_common_write(struct file *file, const char __user *buf, size_t size, loff_t *off); __poll_t tpm_common_poll(struct file *file, poll_table *wait); void tpm_common_release(struct file *file, struct file_priv *priv); #endif