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 "tpm.h"
   6
   7 struct file_priv {
   8         struct tpm_chip *chip;
   9
  10         /* Data passed to and from the tpm via the read/write calls */
  11         atomic_t data_pending;
  12         struct mutex buffer_mutex;
  13
  14         struct timer_list user_read_timer;      /* user needs to claim result */
  15         struct work_struct work;
  16
  17         u8 data_buffer[TPM_BUFSIZE];
  18 };
  19
  20 void tpm_common_open(struct file *file, struct tpm_chip *chip,
  21                      struct file_priv *priv);
  22 ssize_t tpm_common_read(struct file *file, char __user *buf,
  23                         size_t size, loff_t *off);
  24 ssize_t tpm_common_write(struct file *file, const char __user *buf,
  25                          size_t size, loff_t *off, struct tpm_space *space);
  26 void tpm_common_release(struct file *file, struct file_priv *priv);
  27
  28 #endif