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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2023, Linaro Limited
4 */
5
6#ifndef __QCOM_ICE_H__
7#define __QCOM_ICE_H__
8
9#include <linux/blk-crypto.h>
10#include <linux/types.h>
11
12struct qcom_ice;
13
14int qcom_ice_enable(struct qcom_ice *ice);
15int qcom_ice_resume(struct qcom_ice *ice);
16int qcom_ice_suspend(struct qcom_ice *ice);
17int qcom_ice_program_key(struct qcom_ice *ice, unsigned int slot,
18 const struct blk_crypto_key *blk_key);
19int qcom_ice_evict_key(struct qcom_ice *ice, int slot);
20enum blk_crypto_key_type qcom_ice_get_supported_key_type(struct qcom_ice *ice);
21int qcom_ice_derive_sw_secret(struct qcom_ice *ice,
22 const u8 *eph_key, size_t eph_key_size,
23 u8 sw_secret[BLK_CRYPTO_SW_SECRET_SIZE]);
24int qcom_ice_generate_key(struct qcom_ice *ice,
25 u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);
26int qcom_ice_prepare_key(struct qcom_ice *ice,
27 const u8 *lt_key, size_t lt_key_size,
28 u8 eph_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);
29int qcom_ice_import_key(struct qcom_ice *ice,
30 const u8 *raw_key, size_t raw_key_size,
31 u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]);
32struct qcom_ice *devm_of_qcom_ice_get(struct device *dev);
33
34#endif /* __QCOM_ICE_H__ */