/* return the result of hwEnableClock ( )
- TRUE (1) means crypto engine init success
- FALSE (0) means crypto engine init fail */
unsigned char masp_secure_algo_init(void)
{
return masp_hal_secure_algo_init();
}
static char* hacc_secure_request(HACC_USER user, unsigned char *buf, unsigned int buf_size,
BOOL bEncrypt, BOOL bDoLock, unsigned char *sec_seed, unsigned int seed_size)
{
unsigned int ret = SEC_OK;
/* get hacc lock */
if(TRUE == bDoLock)
{
/* If the semaphore is successfully acquired, this function returns 0.*/
ret = osal_hacc_lock();
if(ret)
{
ret = ERR_SBOOT_HACC_LOCK_FAIL;
goto _exit;
}
}
/* turn on clock */
masp_hal_secure_algo_init();
if(buf_size != 0)
{
/* try to open connection to TEE */
if(open_sdriver_connection() < 0)
{
ret = ERR_HACC_OPEN_SECURE_CONNECTION_FAIL;
goto _exit;
}
/* send request to TEE */
if( (ret = tee_secure_request((unsigned int)user, buf, buf_size, (unsigned int)bEncrypt, sec_seed, seed_size)) != SEC_OK)
{
ret = ERR_HACC_REQUEST_SECURE_SERVICE_FAIL;
goto _exit;
}
if(close_sdriver_connection() < 0)
{
ret = ERR_HACC_CLOSE_SECURE_CONNECTION_FAIL;
goto _exit;
}
}
else
{
printk("[HACC] hacc_secure_request - buffer size is 0, no encryption or decyrption is performed\n");
}
_exit:
/* turn off clock */
masp_hal_secure_algo_deinit();
/* release hacc lock */
if(TRUE == bDoLock)
{
osal_hacc_unlock();
}
if(ret)
{
printk("[HACC] hacc_secure_request fail (0x%x) (don't ASSERT)\n", ret);
//ASSERT(0);
}
return buf;
}