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authorgaurav rana <gaurav.rana@freescale.com>2015-02-20 12:51:46 +0530
committerYork Sun <yorksun@freescale.com>2015-02-25 13:20:02 -0800
commit94e3c8c4fd7bfe395fa467973cd647551d6d98c7 (patch)
treeb591415085fa8629245dcd2183f2dc50f550ccc1 /include
parent7ee8c4795d0ab0f1cd25496bfbcdedb184ef5a8d (diff)
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crypto/fsl - Add progressive hashing support using hardware acceleration.
Currently only normal hashing is supported using hardware acceleration. Added support for progressive hashing using hardware. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Signed-off-by: Gaurav Rana <gaurav.rana@freescale.com> CC: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'include')
-rw-r--r--include/fsl_sec.h26
-rw-r--r--include/hw_sha.h41
2 files changed, 66 insertions, 1 deletions
diff --git a/include/fsl_sec.h b/include/fsl_sec.h
index aa850a3..b6e6f04 100644
--- a/include/fsl_sec.h
+++ b/include/fsl_sec.h
@@ -175,6 +175,32 @@ struct jr_regs {
u32 jrcr;
};
+/*
+ * Scatter Gather Entry - Specifies the the Scatter Gather Format
+ * related information
+ */
+struct sg_entry {
+#ifdef CONFIG_SYS_FSL_SEC_LE
+ uint32_t addr_lo; /* Memory Address - lo */
+ uint16_t addr_hi; /* Memory Address of start of buffer - hi */
+ uint16_t reserved_zero;
+#else
+ uint16_t reserved_zero;
+ uint16_t addr_hi; /* Memory Address of start of buffer - hi */
+ uint32_t addr_lo; /* Memory Address - lo */
+#endif
+
+ uint32_t len_flag; /* Length of the data in the frame */
+#define SG_ENTRY_LENGTH_MASK 0x3FFFFFFF
+#define SG_ENTRY_EXTENSION_BIT 0x80000000
+#define SG_ENTRY_FINAL_BIT 0x40000000
+ uint32_t bpid_offset;
+#define SG_ENTRY_BPID_MASK 0x00FF0000
+#define SG_ENTRY_BPID_SHIFT 16
+#define SG_ENTRY_OFFSET_MASK 0x00001FFF
+#define SG_ENTRY_OFFSET_SHIFT 0
+};
+
int sec_init(void);
#endif
diff --git a/include/hw_sha.h b/include/hw_sha.h
index 783350d..ab19a99 100644
--- a/include/hw_sha.h
+++ b/include/hw_sha.h
@@ -7,7 +7,7 @@
*/
#ifndef __HW_SHA_H
#define __HW_SHA_H
-
+#include <hash.h>
/**
* Computes hash value of input pbuf using h/w acceleration
@@ -34,4 +34,43 @@ void hw_sha256(const uchar * in_addr, uint buflen,
*/
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