drivers/char/tpm/st33zp24/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
  16 struct 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
  28 struct 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
  34 int st33zp24_pm_suspend(struct device *dev);
  35 int st33zp24_pm_resume(struct device *dev);
  36 #endif
  37
  38 int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
  39                    struct device *dev, int irq);
  40 void st33zp24_remove(struct tpm_chip *chip);
  41 #endif /* __LOCAL_ST33ZP24_H__ */