mirror of https://gitee.com/openkylin/linux.git
35 lines
991 B
C
35 lines
991 B
C
/* 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
|