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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* Copyright (C) 2003-2006, Advanced Micro Devices, Inc.
3 */
4
5#ifndef _GEODE_AES_H_
6#define _GEODE_AES_H_
7
8/* driver logic flags */
9#define AES_MODE_ECB 0
10#define AES_MODE_CBC 1
11
12#define AES_DIR_DECRYPT 0
13#define AES_DIR_ENCRYPT 1
14
15#define AES_FLAGS_HIDDENKEY (1 << 0)
16
17/* Register definitions */
18
19#define AES_CTRLA_REG 0x0000
20
21#define AES_CTRL_START 0x01
22#define AES_CTRL_DECRYPT 0x00
23#define AES_CTRL_ENCRYPT 0x02
24#define AES_CTRL_WRKEY 0x04
25#define AES_CTRL_DCA 0x08
26#define AES_CTRL_SCA 0x10
27#define AES_CTRL_CBC 0x20
28
29#define AES_INTR_REG 0x0008
30
31#define AES_INTRA_PENDING (1 << 16)
32#define AES_INTRB_PENDING (1 << 17)
33
34#define AES_INTR_PENDING (AES_INTRA_PENDING | AES_INTRB_PENDING)
35#define AES_INTR_MASK 0x07
36
37#define AES_SOURCEA_REG 0x0010
38#define AES_DSTA_REG 0x0014
39#define AES_LENA_REG 0x0018
40#define AES_WRITEKEY0_REG 0x0030
41#define AES_WRITEIV0_REG 0x0040
42
43/* A very large counter that is used to gracefully bail out of an
44 * operation in case of trouble
45 */
46
47#define AES_OP_TIMEOUT 0x50000
48
49struct geode_aes_op {
50
51 void *src;
52 void *dst;
53
54 u32 mode;
55 u32 dir;
56 u32 flags;
57 int len;
58
59 u8 key[AES_KEYSIZE_128];
60 u8 *iv;
61
62 union {
63 struct crypto_blkcipher *blk;
64 struct crypto_cipher *cip;
65 } fallback;
66 u32 keylen;
67};
68
69#endif