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53 lines
1.4 KiB
53 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2015 Infineon Technologies AG |
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* Copyright (C) 2016 STMicroelectronics SAS |
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*/ |
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#ifndef TPM_TIS_SPI_H |
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#define TPM_TIS_SPI_H |
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#include "tpm_tis_core.h" |
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struct tpm_tis_spi_phy { |
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struct tpm_tis_data priv; |
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struct spi_device *spi_device; |
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int (*flow_control)(struct tpm_tis_spi_phy *phy, |
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struct spi_transfer *xfer); |
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struct completion ready; |
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unsigned long wake_after; |
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u8 *iobuf; |
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}; |
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static inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *data) |
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{ |
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return container_of(data, struct tpm_tis_spi_phy, priv); |
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} |
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extern int tpm_tis_spi_init(struct spi_device *spi, struct tpm_tis_spi_phy *phy, |
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int irq, const struct tpm_tis_phy_ops *phy_ops); |
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extern int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len, |
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u8 *in, const u8 *out); |
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extern int tpm_tis_spi_read16(struct tpm_tis_data *data, u32 addr, u16 *result); |
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extern int tpm_tis_spi_read32(struct tpm_tis_data *data, u32 addr, u32 *result); |
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extern int tpm_tis_spi_write32(struct tpm_tis_data *data, u32 addr, u32 value); |
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#ifdef CONFIG_TCG_TIS_SPI_CR50 |
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extern int cr50_spi_probe(struct spi_device *spi); |
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#else |
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static inline int cr50_spi_probe(struct spi_device *spi) |
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{ |
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return -ENODEV; |
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} |
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#endif |
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#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_TCG_TIS_SPI_CR50) |
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extern int tpm_tis_spi_resume(struct device *dev); |
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#else |
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#define tpm_tis_spi_resume NULL |
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#endif |
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#endif
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