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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/soc/qcom/ice.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/*

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 * Copyright (c) 2023, Linaro Limited

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 */

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#ifndef __QCOM_ICE_H__

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#define __QCOM_ICE_H__

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#include <linux/blk-crypto.h>

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#include <linux/types.h>

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struct qcom_ice;

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int qcom_ice_enable(struct qcom_ice *ice);

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int qcom_ice_resume(struct qcom_ice *ice);

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int qcom_ice_suspend(struct qcom_ice *ice);

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int qcom_ice_program_key(struct qcom_ice *ice, unsigned int slot,

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			 const struct blk_crypto_key *blk_key);

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int qcom_ice_evict_key(struct qcom_ice *ice, int slot);

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enum blk_crypto_key_type qcom_ice_get_supported_key_type(struct qcom_ice *ice);

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int qcom_ice_derive_sw_secret(struct qcom_ice *ice,

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			      const u8 *eph_key, size_t eph_key_size,

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			      u8 sw_secret[BLK_CRYPTO_SW_SECRET_SIZE]);

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int qcom_ice_generate_key(struct qcom_ice *ice,

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			  u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);

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int qcom_ice_prepare_key(struct qcom_ice *ice,

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			 const u8 *lt_key, size_t lt_key_size,

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			 u8 eph_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);

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int qcom_ice_import_key(struct qcom_ice *ice,

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			const u8 *raw_key, size_t raw_key_size,

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			u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);

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struct qcom_ice *devm_of_qcom_ice_get(struct device *dev);

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#endif /* __QCOM_ICE_H__ */

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