X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fhw_sha.h;h=d4f3471c43089139660e1ef477f3d410cc9a34d0;hb=e2e5eec6ce1c2cb496a2a5e019a175a9fbdbed2a;hp=264936ce48ee5ceaecd8f4274b5b380db5b63cb0;hpb=fed029f3c31b7d5df674b5090a13356b631918c7;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/hw_sha.h b/include/hw_sha.h
index 264936c..d4f3471 100644
--- a/include/hw_sha.h
+++ b/include/hw_sha.h
@@ -1,26 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Header file for SHA hardware acceleration
  *
  * Copyright (c) 2012  Samsung Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 #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
@@ -32,8 +44,8 @@
  *			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);
+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
@@ -45,6 +57,45 @@ void hw_sha256(const uchar * in_addr, uint buflen,
  *			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);
+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