/* 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]; u8 *iv; union { struct crypto_blkcipher *blk; struct crypto_cipher *cip; } fallback; u32 keylen; }; #endif