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/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
* Without the prior written permission of MediaTek inc. and/or its licensors,
* any reproduction, modification, use or disclosure of MediaTek Software,
* and information contained herein, in whole or in part, shall be strictly prohibited.
*
* MediaTek Inc. (C) 2011. All rights reserved.
*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
* THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
* CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
* SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
* STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
* CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* The following software/firmware and/or related documentation ("MediaTek Software")
* have been modified by MediaTek Inc. All revisions are subject to any receiver's
* applicable license agreements with MediaTek Inc.
*/
#include "sec_osal.h"
/*#include <mach/mt_typedefs.h>*/
#include "sec_hal.h"
#include "hacc_mach.h"
/*#include "sec_log.h"*/
#include "sec_error.h"
#include "sec_typedef.h"
/******************************************************************************
* Crypto Engine Test Driver Debug Control
******************************************************************************/
#define MOD "CE"
/******************************************************************************
* Seed Definition
******************************************************************************/
#define _CRYPTO_SEED_LEN (16)
/******************************************************************************
* GLOBAL FUNCTIONS
******************************************************************************/
/* return the result of hwEnableClock ( )
- TRUE (1) means crypto engine init success
- FALSE (0) means crypto engine init fail */
unsigned char masp_hal_secure_algo_init(void)
{
bool ret = TRUE;
return ret;
}
/* return the result of hwDisableClock ( )
- TRUE (1) means crypto engine de-init success
- FALSE (0) means crypto engine de-init fail */
unsigned char masp_hal_secure_algo_deinit(void)
{
bool ret = TRUE;
return ret;
}
/******************************************************************************
* CRYPTO ENGINE EXPORTED APIs
******************************************************************************/
/* perform crypto operation
@ Direction : TRUE (1) means encrypt
FALSE (0) means decrypt
@ ContentAddr : input source address
@ ContentLen : input source length
@ CustomSeed : customization seed for crypto engine
@ ResText : output destination address */
void masp_hal_secure_algo(unsigned char Direction, unsigned char *ContentAddr,
unsigned int ContentLen, unsigned char *CustomSeed,
unsigned char *ResText)
{
unsigned int err;
unsigned char *src, *dst, *seed;
unsigned int i = 0;
/* try to get hacc lock */
do {
/* If the semaphore is successfully acquired, this function returns 0. */
err = osal_hacc_lock();
} while (0 != err);
/* initialize hacc crypto configuration */
seed = (unsigned char *)CustomSeed;
err = masp_hal_sp_hacc_init(seed, _CRYPTO_SEED_LEN);
if (SEC_OK != err)
goto _error;
/* initialize source and destination address */
src = (unsigned char *)ContentAddr;
dst = (unsigned char *)ResText;
/* according to input parameter to encrypt or decrypt */
switch (Direction) {
case TRUE:
/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
/* ! CCCI driver already got HACC lock ! */
/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
dst =
masp_hal_sp_hacc_enc((unsigned char *)src, ContentLen, TRUE, HACC_USER3, FALSE);
break;
case FALSE:
/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
/* ! CCCI driver already got HACC lock ! */
/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
dst =
masp_hal_sp_hacc_dec((unsigned char *)src, ContentLen, TRUE, HACC_USER3, FALSE);
break;
default:
err = ERR_KER_CRYPTO_INVALID_MODE;
goto _error;
}
/* copy result */
for (i = 0; i < ContentLen; i++)
*(ResText + i) = *(dst + i);
/* try to release hacc lock */
osal_hacc_unlock();
return;
_error:
/* try to release hacc lock */
osal_hacc_unlock();
pr_err("[%s] masp_hal_secure_algo error (0x%x)\n", MOD, err);
BUG_ON(!(0));
}
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