summaryrefslogtreecommitdiff
path: root/drivers/char/tpm/tpm-dev.h
blob: b24cfb4d3ee1e7c7569580f69b2f8146eaa3bcbc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TPM_DEV_H
#define _TPM_DEV_H

#include "tpm.h"

struct file_priv {
	struct tpm_chip *chip;

	/* Data passed to and from the tpm via the read/write calls */
	size_t data_pending;
	struct mutex buffer_mutex;

	struct timer_list user_read_timer;      /* user needs to claim result */
	struct work_struct work;

	u8 data_buffer[TPM_BUFSIZE];
};

void tpm_common_open(struct file *file, struct tpm_chip *chip,
		     struct file_priv *priv);
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, struct tpm_space *space);
void tpm_common_release(struct file *file, struct file_priv *priv);

#endif