/*
 * Copyright (C) 2012-2017 ARM Limited or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _CC_CRYPTO_CTX_H_
#define _CC_CRYPTO_CTX_H_

#include <linux/types.h>

/* context size */
#ifndef CC_CTX_SIZE_LOG2
#if (CC_SUPPORT_SHA > 256)
#define CC_CTX_SIZE_LOG2 8
#else
#define CC_CTX_SIZE_LOG2 7
#endif
#endif
#define CC_CTX_SIZE BIT(CC_CTX_SIZE_LOG2)
#define CC_DRV_CTX_SIZE_WORDS (CC_CTX_SIZE >> 2)

#define CC_DRV_DES_IV_SIZE 8
#define CC_DRV_DES_BLOCK_SIZE 8

#define CC_DRV_DES_ONE_KEY_SIZE 8
#define CC_DRV_DES_DOUBLE_KEY_SIZE 16
#define CC_DRV_DES_TRIPLE_KEY_SIZE 24
#define CC_DRV_DES_KEY_SIZE_MAX CC_DRV_DES_TRIPLE_KEY_SIZE

#define CC_AES_IV_SIZE 16
#define CC_AES_IV_SIZE_WORDS (CC_AES_IV_SIZE >> 2)

#define CC_AES_BLOCK_SIZE 16
#define CC_AES_BLOCK_SIZE_WORDS 4

#define CC_AES_128_BIT_KEY_SIZE 16
#define CC_AES_128_BIT_KEY_SIZE_WORDS	(CC_AES_128_BIT_KEY_SIZE >> 2)
#define CC_AES_192_BIT_KEY_SIZE 24
#define CC_AES_192_BIT_KEY_SIZE_WORDS	(CC_AES_192_BIT_KEY_SIZE >> 2)
#define CC_AES_256_BIT_KEY_SIZE 32
#define CC_AES_256_BIT_KEY_SIZE_WORDS	(CC_AES_256_BIT_KEY_SIZE >> 2)
#define CC_AES_KEY_SIZE_MAX			CC_AES_256_BIT_KEY_SIZE
#define CC_AES_KEY_SIZE_WORDS_MAX		(CC_AES_KEY_SIZE_MAX >> 2)

#define CC_MD5_DIGEST_SIZE	16
#define CC_SHA1_DIGEST_SIZE	20
#define CC_SHA224_DIGEST_SIZE	28
#define CC_SHA256_DIGEST_SIZE	32
#define CC_SHA256_DIGEST_SIZE_IN_WORDS 8
#define CC_SHA384_DIGEST_SIZE	48
#define CC_SHA512_DIGEST_SIZE	64

#define CC_SHA1_BLOCK_SIZE 64
#define CC_SHA1_BLOCK_SIZE_IN_WORDS 16
#define CC_MD5_BLOCK_SIZE 64
#define CC_MD5_BLOCK_SIZE_IN_WORDS 16
#define CC_SHA224_BLOCK_SIZE 64
#define CC_SHA256_BLOCK_SIZE 64
#define CC_SHA256_BLOCK_SIZE_IN_WORDS 16
#define CC_SHA1_224_256_BLOCK_SIZE 64
#define CC_SHA384_BLOCK_SIZE 128
#define CC_SHA512_BLOCK_SIZE 128

#if (CC_SUPPORT_SHA > 256)
#define CC_DIGEST_SIZE_MAX CC_SHA512_DIGEST_SIZE
#define CC_HASH_BLOCK_SIZE_MAX CC_SHA512_BLOCK_SIZE /*1024b*/
#else /* Only up to SHA256 */
#define CC_DIGEST_SIZE_MAX CC_SHA256_DIGEST_SIZE
#define CC_HASH_BLOCK_SIZE_MAX CC_SHA256_BLOCK_SIZE /*512b*/
#endif

#define CC_HMAC_BLOCK_SIZE_MAX CC_HASH_BLOCK_SIZE_MAX

#define CC_MULTI2_SYSTEM_KEY_SIZE		32
#define CC_MULTI2_DATA_KEY_SIZE		8
#define CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE \
		(CC_MULTI2_SYSTEM_KEY_SIZE + CC_MULTI2_DATA_KEY_SIZE)
#define	CC_MULTI2_BLOCK_SIZE					8
#define	CC_MULTI2_IV_SIZE					8
#define	CC_MULTI2_MIN_NUM_ROUNDS				8
#define	CC_MULTI2_MAX_NUM_ROUNDS				128

#define CC_DRV_ALG_MAX_BLOCK_SIZE CC_HASH_BLOCK_SIZE_MAX

enum drv_engine_type {
	DRV_ENGINE_NULL = 0,
	DRV_ENGINE_AES = 1,
	DRV_ENGINE_DES = 2,
	DRV_ENGINE_HASH = 3,
	DRV_ENGINE_RC4 = 4,
	DRV_ENGINE_DOUT = 5,
	DRV_ENGINE_RESERVE32B = S32_MAX,
};

enum drv_crypto_alg {
	DRV_CRYPTO_ALG_NULL = -1,
	DRV_CRYPTO_ALG_AES  = 0,
	DRV_CRYPTO_ALG_DES  = 1,
	DRV_CRYPTO_ALG_HASH = 2,
	DRV_CRYPTO_ALG_C2   = 3,
	DRV_CRYPTO_ALG_HMAC = 4,
	DRV_CRYPTO_ALG_AEAD = 5,
	DRV_CRYPTO_ALG_BYPASS = 6,
	DRV_CRYPTO_ALG_NUM = 7,
	DRV_CRYPTO_ALG_RESERVE32B = S32_MAX
};

enum drv_crypto_direction {
	DRV_CRYPTO_DIRECTION_NULL = -1,
	DRV_CRYPTO_DIRECTION_ENCRYPT = 0,
	DRV_CRYPTO_DIRECTION_DECRYPT = 1,
	DRV_CRYPTO_DIRECTION_DECRYPT_ENCRYPT = 3,
	DRV_CRYPTO_DIRECTION_RESERVE32B = S32_MAX
};

enum drv_cipher_mode {
	DRV_CIPHER_NULL_MODE = -1,
	DRV_CIPHER_ECB = 0,
	DRV_CIPHER_CBC = 1,
	DRV_CIPHER_CTR = 2,
	DRV_CIPHER_CBC_MAC = 3,
	DRV_CIPHER_XTS = 4,
	DRV_CIPHER_XCBC_MAC = 5,
	DRV_CIPHER_OFB = 6,
	DRV_CIPHER_CMAC = 7,
	DRV_CIPHER_CCM = 8,
	DRV_CIPHER_CBC_CTS = 11,
	DRV_CIPHER_GCTR = 12,
	DRV_CIPHER_ESSIV = 13,
	DRV_CIPHER_BITLOCKER = 14,
	DRV_CIPHER_RESERVE32B = S32_MAX
};

enum drv_hash_mode {
	DRV_HASH_NULL = -1,
	DRV_HASH_SHA1 = 0,
	DRV_HASH_SHA256 = 1,
	DRV_HASH_SHA224 = 2,
	DRV_HASH_SHA512 = 3,
	DRV_HASH_SHA384 = 4,
	DRV_HASH_MD5 = 5,
	DRV_HASH_CBC_MAC = 6,
	DRV_HASH_XCBC_MAC = 7,
	DRV_HASH_CMAC = 8,
	DRV_HASH_MODE_NUM = 9,
	DRV_HASH_RESERVE32B = S32_MAX
};

enum drv_hash_hw_mode {
	DRV_HASH_HW_MD5 = 0,
	DRV_HASH_HW_SHA1 = 1,
	DRV_HASH_HW_SHA256 = 2,
	DRV_HASH_HW_SHA224 = 10,
	DRV_HASH_HW_SHA512 = 4,
	DRV_HASH_HW_SHA384 = 12,
	DRV_HASH_HW_GHASH = 6,
	DRV_HASH_HW_RESERVE32B = S32_MAX
};

enum drv_multi2_mode {
	DRV_MULTI2_NULL = -1,
	DRV_MULTI2_ECB = 0,
	DRV_MULTI2_CBC = 1,
	DRV_MULTI2_OFB = 2,
	DRV_MULTI2_RESERVE32B = S32_MAX
};

/* drv_crypto_key_type[1:0] is mapped to cipher_do[1:0] */
/* drv_crypto_key_type[2] is mapped to cipher_config2 */
enum drv_crypto_key_type {
	DRV_NULL_KEY = -1,
	DRV_USER_KEY = 0,		/* 0x000 */
	DRV_ROOT_KEY = 1,		/* 0x001 */
	DRV_PROVISIONING_KEY = 2,	/* 0x010 */
	DRV_SESSION_KEY = 3,		/* 0x011 */
	DRV_APPLET_KEY = 4,		/* NA */
	DRV_PLATFORM_KEY = 5,		/* 0x101 */
	DRV_CUSTOMER_KEY = 6,		/* 0x110 */
	DRV_END_OF_KEYS = S32_MAX,
};

enum drv_crypto_padding_type {
	DRV_PADDING_NONE = 0,
	DRV_PADDING_PKCS7 = 1,
	DRV_PADDING_RESERVE32B = S32_MAX
};

#endif /* _CC_CRYPTO_CTX_H_ */