| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * STMicroelectronics TPM Linux driver for TPM ST33ZP24 |
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| 4 | * Copyright (C) 2009 - 2016 STMicroelectronics |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef __LOCAL_ST33ZP24_H__ |
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| 8 | #define __LOCAL_ST33ZP24_H__ |
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| 9 | |
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| 10 | #define TPM_ST33_I2C "st33zp24-i2c" |
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| 11 | #define TPM_ST33_SPI "st33zp24-spi" |
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| 12 | |
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| 13 | #define TPM_WRITE_DIRECTION 0x80 |
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| 14 | #define ST33ZP24_BUFSIZE 2048 |
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| 15 | |
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| 16 | struct st33zp24_dev { |
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| 17 | struct tpm_chip *chip; |
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| 18 | void *phy_id; |
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| 19 | const struct st33zp24_phy_ops *ops; |
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| 20 | int locality; |
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| 21 | int irq; |
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| 22 | u32 intrs; |
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| 23 | struct gpio_desc *io_lpcpd; |
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| 24 | wait_queue_head_t read_queue; |
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| 25 | }; |
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| 26 | |
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| 27 | |
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| 28 | struct st33zp24_phy_ops { |
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| 29 | int (*send)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size); |
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| 30 | int (*recv)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size); |
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| 31 | }; |
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| 32 | |
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| 33 | #ifdef CONFIG_PM_SLEEP |
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| 34 | int st33zp24_pm_suspend(struct device *dev); |
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| 35 | int st33zp24_pm_resume(struct device *dev); |
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| 36 | #endif |
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| 37 | |
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| 38 | int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops, |
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| 39 | struct device *dev, int irq); |
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| 40 | void st33zp24_remove(struct tpm_chip *chip); |
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| 41 | #endif /* __LOCAL_ST33ZP24_H__ */ |
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| 42 | |
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