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14#include <linux/clk.h>
15#include <linux/crypto.h>
16#include <linux/io.h>
17#include <linux/module.h>
18#include <linux/of.h>
19#include <linux/platform_device.h>
20#include <linux/reset.h>
21#include <crypto/scatterwalk.h>
22#include <linux/scatterlist.h>
23#include <linux/interrupt.h>
24#include <linux/delay.h>
25#include <crypto/md5.h>
26#include <crypto/skcipher.h>
27#include <crypto/sha.h>
28#include <crypto/hash.h>
29#include <crypto/internal/hash.h>
30#include <crypto/internal/skcipher.h>
31#include <crypto/aes.h>
32#include <crypto/des.h>
33#include <crypto/internal/rng.h>
34#include <crypto/rng.h>
35
36#define SS_CTL 0x00
37#define SS_KEY0 0x04
38#define SS_KEY1 0x08
39#define SS_KEY2 0x0C
40#define SS_KEY3 0x10
41#define SS_KEY4 0x14
42#define SS_KEY5 0x18
43#define SS_KEY6 0x1C
44#define SS_KEY7 0x20
45
46#define SS_IV0 0x24
47#define SS_IV1 0x28
48#define SS_IV2 0x2C
49#define SS_IV3 0x30
50
51#define SS_FCSR 0x44
52
53#define SS_MD0 0x4C
54#define SS_MD1 0x50
55#define SS_MD2 0x54
56#define SS_MD3 0x58
57#define SS_MD4 0x5C
58
59#define SS_RXFIFO 0x200
60#define SS_TXFIFO 0x204
61
62
63
64
65#define SS_PRNG_ONESHOT (0 << 15)
66#define SS_PRNG_CONTINUE (1 << 15)
67
68
69#define SS_IV_ARBITRARY (1 << 14)
70
71
72#define SS_ECB (0 << 12)
73#define SS_CBC (1 << 12)
74#define SS_CTS (3 << 12)
75
76
77#define SS_CNT_16BITS (0 << 10)
78#define SS_CNT_32BITS (1 << 10)
79#define SS_CNT_64BITS (2 << 10)
80
81
82#define SS_AES_128BITS (0 << 8)
83#define SS_AES_192BITS (1 << 8)
84#define SS_AES_256BITS (2 << 8)
85
86
87#define SS_ENCRYPTION (0 << 7)
88#define SS_DECRYPTION (1 << 7)
89
90
91#define SS_OP_AES (0 << 4)
92#define SS_OP_DES (1 << 4)
93#define SS_OP_3DES (2 << 4)
94#define SS_OP_SHA1 (3 << 4)
95#define SS_OP_MD5 (4 << 4)
96#define SS_OP_PRNG (5 << 4)
97
98
99#define SS_DATA_END (1 << 2)
100
101
102#define SS_PRNG_START (1 << 1)
103
104
105#define SS_DISABLED (0 << 0)
106#define SS_ENABLED (1 << 0)
107
108
109
110#define SS_RXFIFO_FREE (1 << 30)
111
112
113#define SS_RXFIFO_SPACES(val) (((val) >> 24) & 0x3f)
114
115
116#define SS_TXFIFO_AVAILABLE (1 << 22)
117
118
119#define SS_TXFIFO_SPACES(val) (((val) >> 16) & 0x3f)
120
121#define SS_RX_MAX 32
122#define SS_RX_DEFAULT SS_RX_MAX
123#define SS_TX_MAX 33
124
125#define SS_RXFIFO_EMP_INT_PENDING (1 << 10)
126#define SS_TXFIFO_AVA_INT_PENDING (1 << 8)
127#define SS_RXFIFO_EMP_INT_ENABLE (1 << 2)
128#define SS_TXFIFO_AVA_INT_ENABLE (1 << 0)
129
130#define SS_SEED_LEN 192
131#define SS_DATA_LEN 160
132
133struct sun4i_ss_ctx {
134 void __iomem *base;
135 int irq;
136 struct clk *busclk;
137 struct clk *ssclk;
138 struct reset_control *reset;
139 struct device *dev;
140 struct resource *res;
141 spinlock_t slock;
142#ifdef CONFIG_CRYPTO_DEV_SUN4I_SS_PRNG
143 u32 seed[SS_SEED_LEN / BITS_PER_LONG];
144#endif
145};
146
147struct sun4i_ss_alg_template {
148 u32 type;
149 u32 mode;
150 union {
151 struct skcipher_alg crypto;
152 struct ahash_alg hash;
153 struct rng_alg rng;
154 } alg;
155 struct sun4i_ss_ctx *ss;
156};
157
158struct sun4i_tfm_ctx {
159 u32 key[AES_MAX_KEY_SIZE / 4];
160 u32 keylen;
161 u32 keymode;
162 struct sun4i_ss_ctx *ss;
163 struct crypto_sync_skcipher *fallback_tfm;
164};
165
166struct sun4i_cipher_req_ctx {
167 u32 mode;
168};
169
170struct sun4i_req_ctx {
171 u32 mode;
172 u64 byte_count;
173 u32 hash[5];
174 char buf[64];
175 unsigned int len;
176 int flags;
177};
178
179int sun4i_hash_crainit(struct crypto_tfm *tfm);
180int sun4i_hash_init(struct ahash_request *areq);
181int sun4i_hash_update(struct ahash_request *areq);
182int sun4i_hash_final(struct ahash_request *areq);
183int sun4i_hash_finup(struct ahash_request *areq);
184int sun4i_hash_digest(struct ahash_request *areq);
185int sun4i_hash_export_md5(struct ahash_request *areq, void *out);
186int sun4i_hash_import_md5(struct ahash_request *areq, const void *in);
187int sun4i_hash_export_sha1(struct ahash_request *areq, void *out);
188int sun4i_hash_import_sha1(struct ahash_request *areq, const void *in);
189
190int sun4i_ss_cbc_aes_encrypt(struct skcipher_request *areq);
191int sun4i_ss_cbc_aes_decrypt(struct skcipher_request *areq);
192int sun4i_ss_ecb_aes_encrypt(struct skcipher_request *areq);
193int sun4i_ss_ecb_aes_decrypt(struct skcipher_request *areq);
194
195int sun4i_ss_cbc_des_encrypt(struct skcipher_request *areq);
196int sun4i_ss_cbc_des_decrypt(struct skcipher_request *areq);
197int sun4i_ss_ecb_des_encrypt(struct skcipher_request *areq);
198int sun4i_ss_ecb_des_decrypt(struct skcipher_request *areq);
199
200int sun4i_ss_cbc_des3_encrypt(struct skcipher_request *areq);
201int sun4i_ss_cbc_des3_decrypt(struct skcipher_request *areq);
202int sun4i_ss_ecb_des3_encrypt(struct skcipher_request *areq);
203int sun4i_ss_ecb_des3_decrypt(struct skcipher_request *areq);
204
205int sun4i_ss_cipher_init(struct crypto_tfm *tfm);
206void sun4i_ss_cipher_exit(struct crypto_tfm *tfm);
207int sun4i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
208 unsigned int keylen);
209int sun4i_ss_des_setkey(struct crypto_skcipher *tfm, const u8 *key,
210 unsigned int keylen);
211int sun4i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
212 unsigned int keylen);
213int sun4i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
214 unsigned int slen, u8 *dst, unsigned int dlen);
215int sun4i_ss_prng_seed(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
216