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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Header file for SHA hardware acceleration
- *
- * Copyright (c) 2012 Samsung Electronics
- */
- #ifndef __HW_SHA_H
- #define __HW_SHA_H
- #include <hash.h>
- /**
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 64 bytes are copied to pout[0]...pout[63]. Thus, a user
- * should allocate at least 64 bytes at pOut in advance.
- * @param chunk_size chunk size for sha512
- */
- void hw_sha512(const uchar *in_addr, uint buflen, uchar *out_addr,
- uint chunk_size);
- /**
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 48 bytes are copied to pout[0]...pout[47]. Thus, a user
- * should allocate at least 48 bytes at pOut in advance.
- * @param chunk_size chunk size for sha384
- */
- void hw_sha384(const uchar *in_addr, uint buflen, uchar *out_addr,
- uint chunk_size);
- /**
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 32 bytes are copied to pout[0]...pout[31]. Thus, a user
- * should allocate at least 32 bytes at pOut in advance.
- * @param chunk_size chunk size for sha256
- */
- void hw_sha256(const uchar *in_addr, uint buflen, uchar *out_addr,
- uint chunk_size);
- /**
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 32 bytes are copied to pout[0]...pout[31]. Thus, a user
- * should allocate at least 32 bytes at pOut in advance.
- * @param chunk_size chunk_size for sha1
- */
- void hw_sha1(const uchar *in_addr, uint buflen, uchar *out_addr,
- uint chunk_size);
- /*
- * Create the context for sha progressive hashing using h/w acceleration
- *
- * @algo: Pointer to the hash_algo struct
- * @ctxp: Pointer to the pointer of the context for hashing
- * @return 0 if ok, -ve on error
- */
- int hw_sha_init(struct hash_algo *algo, void **ctxp);
- /*
- * Update buffer for sha progressive hashing using h/w acceleration
- *
- * The context is freed by this function if an error occurs.
- *
- * @algo: Pointer to the hash_algo struct
- * @ctx: Pointer to the context for hashing
- * @buf: Pointer to the buffer being hashed
- * @size: Size of the buffer being hashed
- * @is_last: 1 if this is the last update; 0 otherwise
- * @return 0 if ok, -ve on error
- */
- int hw_sha_update(struct hash_algo *algo, void *ctx, const void *buf,
- unsigned int size, int is_last);
- /*
- * Copy sha hash result at destination location
- *
- * The context is freed after completion of hash operation or after an error.
- *
- * @algo: Pointer to the hash_algo struct
- * @ctx: Pointer to the context for hashing
- * @dest_buf: Pointer to the destination buffer where hash is to be copied
- * @size: Size of the buffer being hashed
- * @return 0 if ok, -ve on error
- */
- int hw_sha_finish(struct hash_algo *algo, void *ctx, void *dest_buf,
- int size);
- #endif
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