1/* Copyright (C) 2003-2006, Advanced Micro Devices, Inc. 2 * 3 * This program is free software; you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation; either version 2 of the License, or 6 * (at your option) any later version. 7 */ 8 9#ifndef _GEODE_AES_H_ 10#define _GEODE_AES_H_ 11 12/* driver logic flags */ 13#define AES_MODE_ECB 0 14#define AES_MODE_CBC 1 15 16#define AES_DIR_DECRYPT 0 17#define AES_DIR_ENCRYPT 1 18 19#define AES_FLAGS_HIDDENKEY (1 << 0) 20 21/* Register definitions */ 22 23#define AES_CTRLA_REG 0x0000 24 25#define AES_CTRL_START 0x01 26#define AES_CTRL_DECRYPT 0x00 27#define AES_CTRL_ENCRYPT 0x02 28#define AES_CTRL_WRKEY 0x04 29#define AES_CTRL_DCA 0x08 30#define AES_CTRL_SCA 0x10 31#define AES_CTRL_CBC 0x20 32 33#define AES_INTR_REG 0x0008 34 35#define AES_INTRA_PENDING (1 << 16) 36#define AES_INTRB_PENDING (1 << 17) 37 38#define AES_INTR_PENDING (AES_INTRA_PENDING | AES_INTRB_PENDING) 39#define AES_INTR_MASK 0x07 40 41#define AES_SOURCEA_REG 0x0010 42#define AES_DSTA_REG 0x0014 43#define AES_LENA_REG 0x0018 44#define AES_WRITEKEY0_REG 0x0030 45#define AES_WRITEIV0_REG 0x0040 46 47/* A very large counter that is used to gracefully bail out of an 48 * operation in case of trouble 49 */ 50 51#define AES_OP_TIMEOUT 0x50000 52 53struct geode_aes_op { 54 55 void *src; 56 void *dst; 57 58 u32 mode; 59 u32 dir; 60 u32 flags; 61 int len; 62 63 u8 key[AES_KEYSIZE_128]; 64 u8 *iv; 65 66 union { 67 struct crypto_blkcipher *blk; 68 struct crypto_cipher *cip; 69 } fallback; 70 u32 keylen; 71}; 72 73#endif 74