linux-imx

/* Copyright (C) 2003-2006, Advanced Micro Devices, Inc.

 *

 * 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.

 */

​

#ifndef _GEODE_AES_H_

#define _GEODE_AES_H_

​

/* driver logic flags */

#define AES_MODE_ECB 0

#define AES_MODE_CBC 1

​

#define AES_DIR_DECRYPT 0

#define AES_DIR_ENCRYPT 1

​

#define AES_FLAGS_HIDDENKEY (1 << 0)

​

/* Register definitions */

​

#define AES_CTRLA_REG  0x0000

​

#define AES_CTRL_START     0x01

#define AES_CTRL_DECRYPT   0x00

#define AES_CTRL_ENCRYPT   0x02

#define AES_CTRL_WRKEY     0x04

#define AES_CTRL_DCA       0x08

#define AES_CTRL_SCA       0x10

#define AES_CTRL_CBC       0x20

​

#define AES_INTR_REG  0x0008

​

#define AES_INTRA_PENDING (1 << 16)

#define AES_INTRB_PENDING (1 << 17)

​

#define AES_INTR_PENDING  (AES_INTRA_PENDING | AES_INTRB_PENDING)

#define AES_INTR_MASK     0x07

​

#define AES_SOURCEA_REG   0x0010

#define AES_DSTA_REG      0x0014

#define AES_LENA_REG      0x0018

#define AES_WRITEKEY0_REG 0x0030

#define AES_WRITEIV0_REG  0x0040

​

/*  A very large counter that is used to gracefully bail out of an

 *  operation in case of trouble

 */

​

#define AES_OP_TIMEOUT    0x50000

​

struct geode_aes_op {

​

    void *src;

    void *dst;

​

    u32 mode;

    u32 dir;

    u32 flags;

    int len;

​

    u8 key[AES_KEYSIZE_128];