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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2021 ASPEED Technology Inc.
*/
#ifndef _UBOOT_HASH_H
#define _UBOOT_HASH_H
enum HASH_ALGO {
HASH_ALGO_CRC16_CCITT,
HASH_ALGO_CRC32,
HASH_ALGO_MD5,
HASH_ALGO_SHA1,
HASH_ALGO_SHA256,
HASH_ALGO_SHA384,
HASH_ALGO_SHA512,
HASH_ALGO_NUM,
HASH_ALGO_INVALID = 0xffffffff,
};
/* general APIs for hash algo information */
enum HASH_ALGO hash_algo_lookup_by_name(const char *name);
ssize_t hash_algo_digest_size(enum HASH_ALGO algo);
const char *hash_algo_name(enum HASH_ALGO algo);
/* device-dependent APIs */
int hash_digest(struct udevice *dev, enum HASH_ALGO algo,
const void *ibuf, const uint32_t ilen,
void *obuf);
int hash_digest_wd(struct udevice *dev, enum HASH_ALGO algo,
const void *ibuf, const uint32_t ilen,
void *obuf, uint32_t chunk_sz);
int hash_init(struct udevice *dev, enum HASH_ALGO algo, void **ctxp);
int hash_update(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen);
int hash_finish(struct udevice *dev, void *ctx, void *obuf);
/*
* struct hash_ops - Driver model for Hash operations
*
* The uclass interface is implemented by all hash devices
* which use driver model.
*/
struct hash_ops {
/* progressive operations */
int (*hash_init)(struct udevice *dev, enum HASH_ALGO algo, void **ctxp);
int (*hash_update)(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen);
int (*hash_finish)(struct udevice *dev, void *ctx, void *obuf);
/* all-in-one operation */
int (*hash_digest)(struct udevice *dev, enum HASH_ALGO algo,
const void *ibuf, const uint32_t ilen,
void *obuf);
/* all-in-one operation with watchdog triggering every chunk_sz */
int (*hash_digest_wd)(struct udevice *dev, enum HASH_ALGO algo,
const void *ibuf, const uint32_t ilen,
void *obuf, uint32_t chunk_sz);
};
#endif
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