Subversion Repositories freemyipod

//

//

//    Copyright 2010 TheSeven

//

//

//    This file is part of emCORE.

//

//    emCORE 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.

//

//    emCORE 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 emCORE.  If not, see <http://www.gnu.org/licenses/>.

//

//

#include "global.h"

#include "hwkeyaes.h"

#include "s5l8720.h"

#include "thread.h"

struct mutex hwkeyaes_mutex;

void hwkeyaes(enum hwkeyaes_direction direction, uint32_t keyidx, void* data, uint32_t size)

{

    int i;

    mutex_lock(&hwkeyaes_mutex, TIMEOUT_BLOCK);

    clockgate_enable(7, true);

    for (i = 0; i < 4; i++) AESIV[i] = 0;

    AESUNKREG0 = 1;

    AESUNKREG0 = 0;

    AESCONTROL = 1;

    AESUNKREG1 = 0;

    AESTYPE = keyidx;

    AESTYPE2 = ~AESTYPE;

    AESUNKREG2 = 0;

    AESKEYLEN = direction == HWKEYAES_ENCRYPT ? 0xf : 0xe;

    AESOUTSIZE = size;

    AESOUTADDR = data;

    AESINSIZE = size;

    AESINADDR = data;

    AESAUXSIZE = size;

    AESAUXADDR = data;

    AESSIZE3 = size;

	invalidate_dcache();

    AESGO = 1;

    while (!(AESSTATUS & 0xf)) sleep(MIN(10000, size >> 4));

    clockgate_enable(7, false);

    mutex_unlock(&hwkeyaes_mutex);

}