drivers/char/tpm/st33zp24/st33zp24.h

   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__ */