1 files changed, 75 insertions, 0 deletions
diff --git a/include/hw_sha.h b/include/hw_sha.h
new file mode 100644
index 0000000..991e496
--- /dev/null
+++ b/include/hw_sha.h
@@ -0,0 +1,75 @@
+/* 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
+ *			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