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gen: Add sha h/w acceleration to hash 

Adding H/W acceleration support to hash which can be used
to test SHA 256 hash algorithm.

Signed-off-by: ARUN MANKUZHI <arun.m@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Akshay Saraswat 2013-03-20 21:00:58 +00:00 committed by Minkyu Kang
parent 8e6ee2933c
commit 1f9c92808a
2 changed files with 68 additions and 0 deletions
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18
common/hash.c
View File

@ -25,6 +25,7 @@
#include <common.h>
#include <command.h>
#include <hw_sha.h>
#include <hash.h>
#include <sha1.h>
#include <sha256.h>
@ -36,6 +37,23 @@
* algorithm names must be in lower case.
*/
static struct hash_algo hash_algo[] = {
/*
* CONFIG_SHA_HW_ACCEL is defined if hardware acceleration is
* available.
*/
#ifdef CONFIG_SHA_HW_ACCEL
{
"sha1",
SHA1_SUM_LEN,
hw_sha1,
CHUNKSZ_SHA1,
}, {
"sha256",
SHA256_SUM_LEN,
hw_sha256,
CHUNKSZ_SHA256,
},
#endif
/*
* This is CONFIG_CMD_SHA1SUM instead of CONFIG_SHA1 since otherwise
* it bloats the code for boards which use SHA1 but not the 'hash'

50
include/hw_sha.h Normal file
View File

@ -0,0 +1,50 @@
/*
* 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
/**
* 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);
#endif