LXR linux/drivers/char/tpm/tpm-dev.h

   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        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#endif
  34