4  * SPDX-License-Identifier: Apache-2.0
27 	enum ncl_status (*init_context)(void *ctx);
29 	enum ncl_status (*finalize_context)(void *ctx);
31 	enum ncl_status (*init)(void *ctx);
33 	 * Prepare the context buffer for a SHA calculation -  by loading the
34 	 * initial SHA-256/384/512 parameters.
36 	enum ncl_status (*start)(void *ctx, enum ncl_sha_type type);
41 	 * in data buffer should no longer effect the SHA calculation.
43 	enum ncl_status (*update)(void *ctx, const uint8_t *data, uint32_t Len);
45 	enum ncl_status (*finish)(void *ctx, uint8_t *hashDigest);
47 	enum ncl_status (*calc)(void *ctx, enum ncl_sha_type type, const uint8_t *data,
50 	enum ncl_status (*power)(void *ctx, uint8_t enable);
51 	/* Reset the SHA hardware and terminate any in-progress operations. */
52 	enum ncl_status (*reset)(void *ctx);
64 	enum hash_algo algo;
81 	return -1;  in npcx_get_unused_session_index()
85 	enum ncl_status ret;  in npcx_sha_compute()
86 	struct npcx_sha_session *npcx_session = ctx->drv_sessn_state;  in npcx_sha_compute()
87 	struct npcx_sha_context *npcx_ctx = &npcx_session->npcx_sha_ctx;  in npcx_sha_compute()
88 	enum ncl_sha_type sha_type;  in npcx_sha_compute()
90 	switch (npcx_session->algo) {  in npcx_sha_compute()
101 		LOG_ERR("Unexpected algo: %d", npcx_session->algo);  in npcx_sha_compute()
102 		return -EINVAL;  in npcx_sha_compute()
105 	if (!ctx->started) {  in npcx_sha_compute()
106 		ret = NPCX_NCL_SHA->start(npcx_ctx->handle, sha_type);  in npcx_sha_compute()
109 			return -EINVAL;  in npcx_sha_compute()
111 		ctx->started = true;  in npcx_sha_compute()
114 	if (pkt->in_len != 0) {  in npcx_sha_compute()
115 		ret = NPCX_NCL_SHA->update(npcx_ctx->handle, pkt->in_buf, pkt->in_len);  in npcx_sha_compute()
118 			ctx->started = false;  in npcx_sha_compute()
119 			return -EINVAL;  in npcx_sha_compute()
124 		ctx->started = false;  in npcx_sha_compute()
125 		ret = NPCX_NCL_SHA->finish(npcx_ctx->handle, pkt->out_buf);  in npcx_sha_compute()
128 			return -EINVAL;  in npcx_sha_compute()
136 				   enum hash_algo algo)  in npcx_hash_session_setup()
141 	if (ctx->flags & ~(NPCX_HASH_CAPS_SUPPORT)) {  in npcx_hash_session_setup()
143 		return -EINVAL;  in npcx_hash_session_setup()
149 		return -EINVAL;  in npcx_hash_session_setup()
154 		LOG_ERR("No free session for now");  in npcx_hash_session_setup()
155 		return -ENOSPC;  in npcx_hash_session_setup()
160 	ctx->drv_sessn_state = &npcx_sessions[ctx_idx];  in npcx_hash_session_setup()
161 	ctx->started = false;  in npcx_hash_session_setup()
162 	ctx->hash_hndlr = npcx_sha_compute;  in npcx_hash_session_setup()
165 	NPCX_NCL_SHA->init_context(npcx_ctx->handle);  in npcx_hash_session_setup()
166 	NPCX_NCL_SHA->power(npcx_ctx->handle, 1);  in npcx_hash_session_setup()
167 	NPCX_NCL_SHA->init(npcx_ctx->handle);  in npcx_hash_session_setup()
168 	NPCX_NCL_SHA->reset(npcx_ctx->handle);  in npcx_hash_session_setup()
175 	struct npcx_sha_session *npcx_session = ctx->drv_sessn_state;  in npcx_hash_session_free()
176 	struct npcx_sha_context *npcx_ctx = &npcx_session->npcx_sha_ctx;  in npcx_hash_session_free()
178 	NPCX_NCL_SHA->reset(npcx_ctx->handle);  in npcx_hash_session_free()
179 	NPCX_NCL_SHA->power(npcx_ctx->handle, 0);  in npcx_hash_session_free()
180 	NPCX_NCL_SHA->finalize_context(npcx_ctx->handle);  in npcx_hash_session_free()
181 	npcx_session->in_use = false;  in npcx_hash_session_free()
195 	handle_size_required = NPCX_NCL_SHA->get_context_size();  in npcx_hash_init()
197 		LOG_ERR("Pre-alloc buf size doesn't match required buf size (%d)",  in npcx_hash_init()
199 		return -ENOSR;  in npcx_hash_init()
214 	     "only one 'nuvoton,npcx-sha' compatible node can be supported");