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/*
* Copyright (C) 2014-2017 Amlogic, Inc. All rights reserved.
*
* All information contained herein is Amlogic confidential.
*
* This software is provided to you pursuant to Software License Agreement
* (SLA) with Amlogic Inc ("Amlogic"). This software may be used
* only in accordance with the terms of this agreement.
*
* Redistribution and use in source and binary forms, with or without
* modification is strictly prohibited without prior written permission from
* Amlogic.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Functions in this file implement Amlogic SHA2 function
*
* Author : zhongfu.luo@amlogic.com
*
* Feature: implement uboot command for SHA2 common usage
* command : sha2 addr_in len [addr_out]
* addr_in[IN] : DDR address for input buffer
* len[IN] : total data size to be processed for SHA2
* addr_out[OUT]: user defined output buffer for the SHA2 (if not set then the SHA2 of input will shown only but not stored)
*
* History: 1. 2017.06.01 function init
*
*
*/
#include <common.h>
#include <malloc.h>
#include <asm/arch/regs.h>
#include <u-boot/sha256.h>
#define DATA_MAX_LEN (100<<20) //max length of SHA2 is 100MB
static int do_sha2(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int nReturn=CMD_RET_USAGE;
ulong addr_in,nLength,addr_out=0;
unsigned char szSHA2[32];
unsigned char *pSHA2 = szSHA2;
int nSHA2Type = 256;
char *endp;
int i;
/* need at least three arguments */
if (argc < 3)
goto exit;
nReturn = __LINE__;
if ( 0 == *argv[1] )
{
printf("[addr_in] format error! \n" );
goto exit;
}
addr_in = simple_strtoul(argv[1], &endp, 16);
if ( 0 != *endp )
{
printf("[addr_in] format error! \n" );
goto exit;
}
nReturn = __LINE__;
if ( 0 == *argv[2])
{
printf("[Length] format error! \n" );
goto exit;
}
nLength = simple_strtoul(argv[2], &endp, 16);
if ( 0 != *endp )
{
printf("[Length] format error! \n" );
goto exit;
}
if ( !nLength || nLength > DATA_MAX_LEN)
{
printf("Length range: 0x00000001 ~ 0x%08x Byte! \n", DATA_MAX_LEN );
goto exit;
}
nReturn = __LINE__;
if (argc > 3)
{
if ( 0 == *argv[3] )
{
printf("[addr_out] format error! \n" );
goto exit;
}
addr_out = simple_strtoul(argv[3], &endp, 16);
if ( 0 != *endp )
{
printf("[addr_out] format error! \n" );
goto exit;
}
pSHA2=(unsigned char *)addr_out;
}
sha256_csum_wd((unsigned char *)addr_in, nLength,pSHA2,0);
if (argc > 3)
printf("\nSHA%d of addr_in: 0x%08x, len: 0x%08x, addr_out: 0x%08x \n", nSHA2Type, (unsigned int)addr_in, (unsigned int)nLength,(unsigned int)addr_out);
else
printf("\nSHA%d of addr_in: 0x%08x, len: 0x%08x \n", nSHA2Type, (unsigned int)addr_in, (unsigned int)nLength);
for (i=0; i<SHA256_SUM_LEN; i++)
printf("%02x%s", pSHA2[i], ((i+1) % 16==0) ? "\n" :" ");
nReturn = 0;
exit:
return nReturn;
}
#undef DATA_MAX_LEN
U_BOOT_CMD(
sha2, 4, 1, do_sha2,
"SHA2 command",
"addr_in len [addr_out] \n"
);
/*
* Feature: implement uboot command for test SHA2 common usage
* command : sha2test [writeval] [len]
* writeval[IN] : the value of data for test(default is 0x01)
* len[IN] : total data size to be processed for SHA2 (default is 128k bytes)
*
* History: 1. 2017.06.01 function init
*
*
*/
//#define CONFIG_AML_SHA2_TEST
#if defined(CONFIG_AML_SHA2_TEST)
#define writel(val,reg) (*((volatile unsigned *)(reg)))=(val)
#define readl(reg) (*((volatile unsigned *)(reg)))
#define TEST_MAX_LEN (10<<20)
#define TEST_MIN_LEN (64)
static int do_sha2test(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int nReturn = __LINE__;
unsigned char *pBuffer = 0;
int i;
int nLength = TEST_MAX_LEN;
unsigned int byPattern = 1;
char *endp;
int nSHA2Type = 256;
unsigned int ntime1,ntime2,ntime;
unsigned char szSHA2[32];
int testLength[8]={TEST_MAX_LEN,1024*1024,100*1024,10*1024,1024,512,128,TEST_MIN_LEN};
int c=0;
#ifdef CONFIG_AML_HW_SHA2
printf("aml log : Amlogic HW SHA2 \n");
#else
printf("aml log : Software SHA2 \n");
#endif
//pattern
if (argc > 1)
{
if ( 0 == *argv[1] )
{
printf("[writeval] format error! \n" );
goto exit;
}
byPattern = simple_strtoul(argv[1], &endp, 16);
if ( 0 != *endp )
{
printf("[writeval] format error! \n" );
goto exit;
}
if ( byPattern > 0xff)
{
printf("writeval range: 0x00 ~ 0xff! \n" );
goto exit;
}
}
nReturn = __LINE__;
//length
if (argc > 2)
{
if ( 0== *argv[2] )
{
printf("[Length] format error! \n" );
goto exit;
}
nLength = simple_strtoul(argv[2], &endp, 16);
if ( 0 != *endp )
{
printf("[Length] format error! \n" );
goto exit;
}
if ( !nLength || nLength > TEST_MAX_LEN)
{
printf("Length range: 0x00000001 ~ 0x%08x Byte! \n", TEST_MAX_LEN );
goto exit;
}
}
nReturn = __LINE__;
pBuffer=(unsigned char*)malloc(nLength);
if (!pBuffer)
{
printf("malloc fail! \n" );
goto exit;
}
//set buffer with dedicated pattern
memset(pBuffer,byPattern,nLength);
do
{
ntime1=readl(P_ISA_TIMERE);
sha256_csum_wd(pBuffer, nLength,szSHA2,0 );
ntime2=readl(P_ISA_TIMERE);
ntime = ntime2 - ntime1;
printf("\nSHA%d of value: 0x%02x, len: 0x%08x, time used: %d us, bandwidth: %d kB/s \n",\
nSHA2Type, (unsigned int)byPattern, nLength,ntime, (unsigned int)((float)nLength/1024/ntime*1000000));
//SHA2 dump
for (i=0; i<SHA256_SUM_LEN; i++)
printf("%02x%s", szSHA2[i], ((i+1) % 16==0) ? "\n" :" ");
if (argc > 2)
break;
nLength =testLength[++c];
}
while (nLength > TEST_MIN_LEN) ;
nReturn = 0;
exit:
if (pBuffer)
{
free(pBuffer);
pBuffer = 0;
}
return nReturn;
}
#undef writel
#undef readl
#undef TEST_MAX_LEN
#undef TEST_MIN_LEN
U_BOOT_CMD(
sha2test, 3, 1, do_sha2test,
"test SHA2 fuction",
"[writeval] [len] \n"
);
#endif //#if defined(CONFIG_AML_SHA2_TEST)