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/*
* Copyright (c) 2022 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_DRIVERS_CRYPTO_CRYPTO_INTEL_SHA_PRIV_H_
#define ZEPHYR_DRIVERS_CRYPTO_CRYPTO_INTEL_SHA_PRIV_H_
#include <zephyr/kernel.h>
#include <zephyr/sys/util.h>
#include "crypto_intel_sha_registers.h"
#define SHA_HASH_DATA_BLOCK_LEN (64)
#define SHA_API_MAX_FRAG_LEN (64 * 1024 - 256)
#define SHA_REQUIRED_BLOCK_ALIGNMENT (512)
/* Possible SHA states */
#define SHA_FIRST (2)
#define SHA_MIDLE (3)
#define SHA_LAST (0)
/* SHA resume flag */
#define SHA_HRSM_ENABLE (1)
#define SHA_HRSM_DISABLE (0)
#define SHA1_ALGORITHM_HASH_SIZEOF (160 / 8)
#define SHA224_ALGORITHM_HASH_SIZEOF (224 / 8)
#define SHA256_ALGORITHM_HASH_SIZEOF (256 / 8)
#define SHA384_ALGORITHM_HASH_SIZEOF (384 / 8)
#define SHA512_ALGORITHM_HASH_SIZEOF (512 / 8)
#define SHA_MAX_SESSIONS 8
#define BYTE_SWAP32(x) \
(((x >> 24) & 0x000000FF) | ((x << 24) & 0xFF000000) | ((x >> 8) & 0x0000FF00) | \
((x << 8) & 0x00FF0000))
struct sha_hw_regs {
union PIBCS pibcs;
union PIBBA pibba;
union PIBS pibs;
union PIBFPI pibfpi;
union PIBRP pibrp;
union PIBWP pibwp;
union PIBSP pibsp;
uint32_t not_used1[5];
union SHARLDW0 sharldw0;
union SHARLDW1 sharldw1;
union SHAALDW0 shaaldw0;
union SHAALDW1 shaaldw1;
union SHACTL shactl;
union SHASTS shasts;
uint32_t not_used12[2];
uint8_t initial_vector[64];
uint8_t sha_result[64];
};
union sha_state {
uint32_t full;
struct {
/* Hash state: SHA_FIRST, SHA_MIDLE or SHA_LAST */
uint32_t state : 3;
/* Hash resume bit */
uint32_t hrsm : 1;
uint32_t rsvd : 28;
} part;
};
struct sha_context {
union SHAALDW0 shaaldw0;
union SHAALDW1 shaaldw1;
uint8_t initial_vector[SHA_HASH_DATA_BLOCK_LEN];
uint8_t sha_result[SHA_HASH_DATA_BLOCK_LEN];
};
struct sha_session {
struct sha_context sha_ctx;
union sha_state state;
uint32_t algo;
bool in_use;
};
struct sha_container {
/* pointer to DSP SHA Registers */
volatile struct sha_hw_regs *dfsha;
};
#endif