st33zp24.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * STMicroelectronics TPM Linux driver for TPM ST33ZP24
 4 * Copyright (C) 2009 - 2016  STMicroelectronics
 5 */
 6
 7#ifndef __LOCAL_ST33ZP24_H__
 8#define __LOCAL_ST33ZP24_H__
 9
10#define TPM_ST33_I2C		"st33zp24-i2c"
11#define TPM_ST33_SPI		"st33zp24-spi"
12
13#define TPM_WRITE_DIRECTION	0x80
14#define ST33ZP24_BUFSIZE	2048
15
16struct st33zp24_dev {
17	struct tpm_chip *chip;
18	void *phy_id;
19	const struct st33zp24_phy_ops *ops;
20	int locality;
21	int irq;
22	u32 intrs;
23	struct gpio_desc *io_lpcpd;
24	wait_queue_head_t read_queue;
25};
26
27
28struct st33zp24_phy_ops {
29	int (*send)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
30	int (*recv)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
31};
32
33#ifdef CONFIG_PM_SLEEP
34int st33zp24_pm_suspend(struct device *dev);
35int st33zp24_pm_resume(struct device *dev);
36#endif
37
38int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
39		   struct device *dev, int irq);
40void st33zp24_remove(struct tpm_chip *chip);
41#endif /* __LOCAL_ST33ZP24_H__ */