1 /*
2  * STMicroelectronics TPM Linux driver for TPM ST33ZP24
3  * Copyright (C) 2009 - 2016  STMicroelectronics
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef __LOCAL_ST33ZP24_H__
19 #define __LOCAL_ST33ZP24_H__
20 
21 #define TPM_WRITE_DIRECTION             0x80
22 #define TPM_BUFSIZE                     2048
23 
24 struct st33zp24_dev {
25 	struct tpm_chip *chip;
26 	void *phy_id;
27 	const struct st33zp24_phy_ops *ops;
28 	int locality;
29 	int irq;
30 	u32 intrs;
31 	int io_lpcpd;
32 	wait_queue_head_t read_queue;
33 };
34 
35 
36 struct st33zp24_phy_ops {
37 	int (*send)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
38 	int (*recv)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
39 };
40 
41 #ifdef CONFIG_PM_SLEEP
42 int st33zp24_pm_suspend(struct device *dev);
43 int st33zp24_pm_resume(struct device *dev);
44 #endif
45 
46 int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
47 		   struct device *dev, int irq, int io_lpcpd);
48 int st33zp24_remove(struct tpm_chip *chip);
49 #endif /* __LOCAL_ST33ZP24_H__ */
50