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/* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _QCOM_INLINE_CRYPTO_ENGINE_H_
#define _QCOM_INLINE_CRYPTO_ENGINE_H_
#include <linux/platform_device.h>
struct request;
enum ice_cryto_algo_mode {
ICE_CRYPTO_ALGO_MODE_AES_ECB = 0x0,
ICE_CRYPTO_ALGO_MODE_AES_XTS = 0x3,
};
enum ice_crpto_key_size {
ICE_CRYPTO_KEY_SIZE_128 = 0x0,
ICE_CRYPTO_KEY_SIZE_256 = 0x2,
};
enum ice_crpto_key_mode {
ICE_CRYPTO_USE_KEY0_HW_KEY = 0x0,
ICE_CRYPTO_USE_KEY1_HW_KEY = 0x1,
ICE_CRYPTO_USE_LUT_SW_KEY0 = 0x2,
ICE_CRYPTO_USE_LUT_SW_KEY = 0x3
};
struct ice_crypto_setting {
enum ice_crpto_key_size key_size;
enum ice_cryto_algo_mode algo_mode;
enum ice_crpto_key_mode key_mode;
short key_index;
};
struct ice_data_setting {
struct ice_crypto_setting crypto_data;
bool sw_forced_context_switch;
bool decr_bypass;
bool encr_bypass;
};
/* MSM ICE Crypto Data Unit of target DUN of Transfer Request */
enum ice_crypto_data_unit {
ICE_CRYPTO_DATA_UNIT_512_B = 0,
ICE_CRYPTO_DATA_UNIT_1_KB = 1,
ICE_CRYPTO_DATA_UNIT_2_KB = 2,
ICE_CRYPTO_DATA_UNIT_4_KB = 3,
ICE_CRYPTO_DATA_UNIT_8_KB = 4,
ICE_CRYPTO_DATA_UNIT_16_KB = 5,
ICE_CRYPTO_DATA_UNIT_32_KB = 6,
ICE_CRYPTO_DATA_UNIT_64_KB = 7,
};
typedef void (*ice_error_cb)(void *, u32 error);
struct qcom_ice_variant_ops *qcom_ice_get_variant_ops(struct device_node *node);
struct platform_device *qcom_ice_get_pdevice(struct device_node *node);
#ifdef CONFIG_CRYPTO_DEV_QCOM_ICE
int qcom_ice_setup_ice_hw(const char *storage_type, int enable);
void qcom_ice_set_fde_flag(int flag);
int qcom_ice_set_fde_conf(sector_t strt, sector_t size, int idx, int mode);
#else
static inline int qcom_ice_setup_ice_hw(const char *storage_type, int enable)
{
return 0;
}
static inline void qcom_ice_set_fde_flag(int flag) {}
static inline int qcom_ice_set_fde_conf(sector_t strt, sector_t size, int idx,
int mode)
{
return 0;
}
#endif
struct qcom_ice_variant_ops {
const char *name;
int (*init)(struct platform_device *, void *, ice_error_cb);
int (*reset)(struct platform_device *);
int (*resume)(struct platform_device *);
int (*suspend)(struct platform_device *);
int (*config_start)(struct platform_device *, struct request *,
struct ice_data_setting *, bool);
int (*config_end)(struct request *);
int (*status)(struct platform_device *);
void (*debug)(struct platform_device *);
};
#endif /* _QCOM_INLINE_CRYPTO_ENGINE_H_ */
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