Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 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 | |
Sebastian Siewior | b7a30da | 2007-10-21 16:21:25 +0800 | [diff] [blame] | 12 | /* driver logic flags */ |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 13 | #define AES_IV_LENGTH 16 |
Sebastian Siewior | b7a30da | 2007-10-21 16:21:25 +0800 | [diff] [blame] | 14 | #define AES_KEY_LENGTH 16 |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 15 | #define AES_MIN_BLOCK_SIZE 16 |
| 16 | |
| 17 | #define AES_MODE_ECB 0 |
| 18 | #define AES_MODE_CBC 1 |
| 19 | |
| 20 | #define AES_DIR_DECRYPT 0 |
| 21 | #define AES_DIR_ENCRYPT 1 |
| 22 | |
Jordan Crouse | 761e784 | 2007-05-24 21:23:24 +1000 | [diff] [blame] | 23 | #define AES_FLAGS_HIDDENKEY (1 << 0) |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 24 | |
Sebastian Siewior | b7a30da | 2007-10-21 16:21:25 +0800 | [diff] [blame] | 25 | /* Register definitions */ |
| 26 | |
| 27 | #define AES_CTRLA_REG 0x0000 |
| 28 | |
| 29 | #define AES_CTRL_START 0x01 |
| 30 | #define AES_CTRL_DECRYPT 0x00 |
| 31 | #define AES_CTRL_ENCRYPT 0x02 |
| 32 | #define AES_CTRL_WRKEY 0x04 |
| 33 | #define AES_CTRL_DCA 0x08 |
| 34 | #define AES_CTRL_SCA 0x10 |
| 35 | #define AES_CTRL_CBC 0x20 |
| 36 | |
| 37 | #define AES_INTR_REG 0x0008 |
| 38 | |
| 39 | #define AES_INTRA_PENDING (1 << 16) |
| 40 | #define AES_INTRB_PENDING (1 << 17) |
| 41 | |
| 42 | #define AES_INTR_PENDING (AES_INTRA_PENDING | AES_INTRB_PENDING) |
| 43 | #define AES_INTR_MASK 0x07 |
| 44 | |
| 45 | #define AES_SOURCEA_REG 0x0010 |
| 46 | #define AES_DSTA_REG 0x0014 |
| 47 | #define AES_LENA_REG 0x0018 |
| 48 | #define AES_WRITEKEY0_REG 0x0030 |
| 49 | #define AES_WRITEIV0_REG 0x0040 |
| 50 | |
| 51 | /* A very large counter that is used to gracefully bail out of an |
| 52 | * operation in case of trouble |
| 53 | */ |
| 54 | |
| 55 | #define AES_OP_TIMEOUT 0x50000 |
| 56 | |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 57 | struct geode_aes_op { |
| 58 | |
| 59 | void *src; |
| 60 | void *dst; |
| 61 | |
| 62 | u32 mode; |
| 63 | u32 dir; |
| 64 | u32 flags; |
| 65 | int len; |
| 66 | |
| 67 | u8 key[AES_KEY_LENGTH]; |
Sebastian Siewior | d2456c6 | 2007-11-30 16:36:57 +1100 | [diff] [blame^] | 68 | u8 *iv; |
Sebastian Siewior | cd7c3bf | 2007-11-10 19:29:33 +0800 | [diff] [blame] | 69 | |
| 70 | union { |
| 71 | struct crypto_blkcipher *blk; |
| 72 | struct crypto_cipher *cip; |
| 73 | } fallback; |
| 74 | u32 keylen; |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 75 | }; |
| 76 | |
Jordan Crouse | 9fe757b | 2006-10-04 18:48:57 +1000 | [diff] [blame] | 77 | #endif |