CoCalc -- rk3288

GitHub Repository: torvalds/linux
Path: blob/master/drivers/crypto/rockchip/rk3288_crypto.h
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __RK3288_CRYPTO_H__
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#define __RK3288_CRYPTO_H__
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#include <crypto/aes.h>
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#include <crypto/engine.h>
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#include <crypto/internal/des.h>
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#include <crypto/internal/hash.h>
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#include <crypto/internal/skcipher.h>
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#include <crypto/md5.h>
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#include <crypto/sha1.h>
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#include <crypto/sha2.h>
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#include <linux/dma-mapping.h>
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#include <linux/interrupt.h>
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#include <linux/pm_runtime.h>
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#include <linux/scatterlist.h>
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#include <linux/types.h>
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#define _SBF(v, f)			((v) << (f))
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/* Crypto control registers*/
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#define RK_CRYPTO_INTSTS		0x0000
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#define RK_CRYPTO_PKA_DONE_INT		BIT(5)
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#define RK_CRYPTO_HASH_DONE_INT		BIT(4)
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#define RK_CRYPTO_HRDMA_ERR_INT		BIT(3)
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#define RK_CRYPTO_HRDMA_DONE_INT	BIT(2)
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#define RK_CRYPTO_BCDMA_ERR_INT		BIT(1)
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#define RK_CRYPTO_BCDMA_DONE_INT	BIT(0)
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#define RK_CRYPTO_INTENA		0x0004
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#define RK_CRYPTO_PKA_DONE_ENA		BIT(5)
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#define RK_CRYPTO_HASH_DONE_ENA		BIT(4)
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#define RK_CRYPTO_HRDMA_ERR_ENA		BIT(3)
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#define RK_CRYPTO_HRDMA_DONE_ENA	BIT(2)
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#define RK_CRYPTO_BCDMA_ERR_ENA		BIT(1)
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#define RK_CRYPTO_BCDMA_DONE_ENA	BIT(0)
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#define RK_CRYPTO_CTRL			0x0008
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#define RK_CRYPTO_WRITE_MASK		_SBF(0xFFFF, 16)
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#define RK_CRYPTO_TRNG_FLUSH		BIT(9)
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#define RK_CRYPTO_TRNG_START		BIT(8)
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#define RK_CRYPTO_PKA_FLUSH		BIT(7)
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#define RK_CRYPTO_HASH_FLUSH		BIT(6)
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#define RK_CRYPTO_BLOCK_FLUSH		BIT(5)
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#define RK_CRYPTO_PKA_START		BIT(4)
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#define RK_CRYPTO_HASH_START		BIT(3)
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#define RK_CRYPTO_BLOCK_START		BIT(2)
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#define RK_CRYPTO_TDES_START		BIT(1)
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#define RK_CRYPTO_AES_START		BIT(0)
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#define RK_CRYPTO_CONF			0x000c
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/* HASH Receive DMA Address Mode:   fix | increment */
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#define RK_CRYPTO_HR_ADDR_MODE		BIT(8)
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/* Block Transmit DMA Address Mode: fix | increment */
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#define RK_CRYPTO_BT_ADDR_MODE		BIT(7)
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/* Block Receive DMA Address Mode:  fix | increment */
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#define RK_CRYPTO_BR_ADDR_MODE		BIT(6)
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#define RK_CRYPTO_BYTESWAP_HRFIFO	BIT(5)
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#define RK_CRYPTO_BYTESWAP_BTFIFO	BIT(4)
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#define RK_CRYPTO_BYTESWAP_BRFIFO	BIT(3)
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/* AES = 0 OR DES = 1 */
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#define RK_CRYPTO_DESSEL				BIT(2)
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#define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE		_SBF(0x00, 0)
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#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT		_SBF(0x01, 0)
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#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT		_SBF(0x02, 0)
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/* Block Receiving DMA Start Address Register */
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#define RK_CRYPTO_BRDMAS		0x0010
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/* Block Transmitting DMA Start Address Register */
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#define RK_CRYPTO_BTDMAS		0x0014
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/* Block Receiving DMA Length Register */
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#define RK_CRYPTO_BRDMAL		0x0018
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/* Hash Receiving DMA Start Address Register */
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#define RK_CRYPTO_HRDMAS		0x001c
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/* Hash Receiving DMA Length Register */
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#define RK_CRYPTO_HRDMAL		0x0020
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/* AES registers */
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#define RK_CRYPTO_AES_CTRL			  0x0080
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#define RK_CRYPTO_AES_BYTESWAP_CNT	BIT(11)
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#define RK_CRYPTO_AES_BYTESWAP_KEY	BIT(10)
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#define RK_CRYPTO_AES_BYTESWAP_IV	BIT(9)
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#define RK_CRYPTO_AES_BYTESWAP_DO	BIT(8)
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#define RK_CRYPTO_AES_BYTESWAP_DI	BIT(7)
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#define RK_CRYPTO_AES_KEY_CHANGE	BIT(6)
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#define RK_CRYPTO_AES_ECB_MODE		_SBF(0x00, 4)
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#define RK_CRYPTO_AES_CBC_MODE		_SBF(0x01, 4)
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#define RK_CRYPTO_AES_CTR_MODE		_SBF(0x02, 4)
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#define RK_CRYPTO_AES_128BIT_key	_SBF(0x00, 2)
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#define RK_CRYPTO_AES_192BIT_key	_SBF(0x01, 2)
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#define RK_CRYPTO_AES_256BIT_key	_SBF(0x02, 2)
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/* Slave = 0 / fifo = 1 */
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#define RK_CRYPTO_AES_FIFO_MODE		BIT(1)
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/* Encryption = 0 , Decryption = 1 */
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#define RK_CRYPTO_AES_DEC		BIT(0)
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#define RK_CRYPTO_AES_STS		0x0084
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#define RK_CRYPTO_AES_DONE		BIT(0)
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/* AES Input Data 0-3 Register */
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#define RK_CRYPTO_AES_DIN_0		0x0088
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#define RK_CRYPTO_AES_DIN_1		0x008c
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#define RK_CRYPTO_AES_DIN_2		0x0090
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#define RK_CRYPTO_AES_DIN_3		0x0094
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/* AES output Data 0-3 Register */
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#define RK_CRYPTO_AES_DOUT_0		0x0098
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#define RK_CRYPTO_AES_DOUT_1		0x009c
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#define RK_CRYPTO_AES_DOUT_2		0x00a0
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#define RK_CRYPTO_AES_DOUT_3		0x00a4
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/* AES IV Data 0-3 Register */
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#define RK_CRYPTO_AES_IV_0		0x00a8
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#define RK_CRYPTO_AES_IV_1		0x00ac
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#define RK_CRYPTO_AES_IV_2		0x00b0
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#define RK_CRYPTO_AES_IV_3		0x00b4
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/* AES Key Data 0-3 Register */
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#define RK_CRYPTO_AES_KEY_0		0x00b8
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#define RK_CRYPTO_AES_KEY_1		0x00bc
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#define RK_CRYPTO_AES_KEY_2		0x00c0
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#define RK_CRYPTO_AES_KEY_3		0x00c4
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#define RK_CRYPTO_AES_KEY_4		0x00c8
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#define RK_CRYPTO_AES_KEY_5		0x00cc
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#define RK_CRYPTO_AES_KEY_6		0x00d0
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#define RK_CRYPTO_AES_KEY_7		0x00d4
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/* des/tdes */
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#define RK_CRYPTO_TDES_CTRL		0x0100
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#define RK_CRYPTO_TDES_BYTESWAP_KEY	BIT(8)
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#define RK_CRYPTO_TDES_BYTESWAP_IV	BIT(7)
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#define RK_CRYPTO_TDES_BYTESWAP_DO	BIT(6)
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#define RK_CRYPTO_TDES_BYTESWAP_DI	BIT(5)
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/* 0: ECB, 1: CBC */
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#define RK_CRYPTO_TDES_CHAINMODE_CBC	BIT(4)
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/* TDES Key Mode, 0 : EDE, 1 : EEE */
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#define RK_CRYPTO_TDES_EEE		BIT(3)
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/* 0: DES, 1:TDES */
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#define RK_CRYPTO_TDES_SELECT		BIT(2)
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/* 0: Slave, 1:Fifo */
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#define RK_CRYPTO_TDES_FIFO_MODE	BIT(1)
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/* Encryption = 0 , Decryption = 1 */
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#define RK_CRYPTO_TDES_DEC		BIT(0)
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#define RK_CRYPTO_TDES_STS		0x0104
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#define RK_CRYPTO_TDES_DONE		BIT(0)
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#define RK_CRYPTO_TDES_DIN_0		0x0108
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#define RK_CRYPTO_TDES_DIN_1		0x010c
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#define RK_CRYPTO_TDES_DOUT_0		0x0110
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#define RK_CRYPTO_TDES_DOUT_1		0x0114
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#define RK_CRYPTO_TDES_IV_0		0x0118
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#define RK_CRYPTO_TDES_IV_1		0x011c
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#define RK_CRYPTO_TDES_KEY1_0		0x0120
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#define RK_CRYPTO_TDES_KEY1_1		0x0124
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#define RK_CRYPTO_TDES_KEY2_0		0x0128
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#define RK_CRYPTO_TDES_KEY2_1		0x012c
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#define RK_CRYPTO_TDES_KEY3_0		0x0130
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#define RK_CRYPTO_TDES_KEY3_1		0x0134
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/* HASH */
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#define RK_CRYPTO_HASH_CTRL		0x0180
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#define RK_CRYPTO_HASH_SWAP_DO		BIT(3)
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#define RK_CRYPTO_HASH_SWAP_DI		BIT(2)
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#define RK_CRYPTO_HASH_SHA1		_SBF(0x00, 0)
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#define RK_CRYPTO_HASH_MD5		_SBF(0x01, 0)
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#define RK_CRYPTO_HASH_SHA256		_SBF(0x02, 0)
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#define RK_CRYPTO_HASH_PRNG		_SBF(0x03, 0)
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#define RK_CRYPTO_HASH_STS		0x0184
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#define RK_CRYPTO_HASH_DONE		BIT(0)
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#define RK_CRYPTO_HASH_MSG_LEN		0x0188
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#define RK_CRYPTO_HASH_DOUT_0		0x018c
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#define RK_CRYPTO_HASH_DOUT_1		0x0190
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#define RK_CRYPTO_HASH_DOUT_2		0x0194
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#define RK_CRYPTO_HASH_DOUT_3		0x0198
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#define RK_CRYPTO_HASH_DOUT_4		0x019c
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#define RK_CRYPTO_HASH_DOUT_5		0x01a0
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#define RK_CRYPTO_HASH_DOUT_6		0x01a4
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#define RK_CRYPTO_HASH_DOUT_7		0x01a8
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#define CRYPTO_READ(dev, offset)		  \
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		readl_relaxed(((dev)->reg + (offset)))
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#define CRYPTO_WRITE(dev, offset, val)	  \
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		writel_relaxed((val), ((dev)->reg + (offset)))
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#define RK_MAX_CLKS 4
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/*
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 * struct rockchip_ip - struct for managing a list of RK crypto instance
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 * @dev_list:		Used for doing a list of rk_crypto_info
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 * @lock:		Control access to dev_list
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 * @dbgfs_dir:		Debugfs dentry for statistic directory
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 * @dbgfs_stats:	Debugfs dentry for statistic counters
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 */
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struct rockchip_ip {
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	struct list_head	dev_list;
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	spinlock_t		lock; /* Control access to dev_list */
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	struct dentry		*dbgfs_dir;
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	struct dentry		*dbgfs_stats;
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};
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struct rk_clks {
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	const char *name;
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	unsigned long max;
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};
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struct rk_variant {
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	int num_clks;
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	struct rk_clks rkclks[RK_MAX_CLKS];
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};
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struct rk_crypto_info {
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	struct list_head		list;
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	struct device			*dev;
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	struct clk_bulk_data		*clks;
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	int				num_clks;
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	struct reset_control		*rst;
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	void __iomem			*reg;
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	int				irq;
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	const struct rk_variant *variant;
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	unsigned long nreq;
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	struct crypto_engine *engine;
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	struct completion complete;
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	int status;
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};
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/* the private variable of hash */
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struct rk_ahash_ctx {
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	/* for fallback */
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	struct crypto_ahash		*fallback_tfm;
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};
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/* the private variable of hash for fallback */
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struct rk_ahash_rctx {
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	struct rk_crypto_info		*dev;
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	struct ahash_request		fallback_req;
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	u32				mode;
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	int nrsg;
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};
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/* the private variable of cipher */
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struct rk_cipher_ctx {
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	unsigned int			keylen;
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	u8				key[AES_MAX_KEY_SIZE];
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	u8				iv[AES_BLOCK_SIZE];
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	struct crypto_skcipher *fallback_tfm;
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};
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struct rk_cipher_rctx {
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	struct rk_crypto_info		*dev;
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	u8 backup_iv[AES_BLOCK_SIZE];
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	u32				mode;
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	struct skcipher_request fallback_req;   // keep at the end
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};
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struct rk_crypto_tmp {
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	u32 type;
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	struct rk_crypto_info           *dev;
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	union {
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		struct skcipher_engine_alg skcipher;
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		struct ahash_engine_alg hash;
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	} alg;
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	unsigned long stat_req;
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	unsigned long stat_fb;
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	unsigned long stat_fb_len;
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	unsigned long stat_fb_sglen;
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	unsigned long stat_fb_align;
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	unsigned long stat_fb_sgdiff;
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};
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extern struct rk_crypto_tmp rk_ecb_aes_alg;
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extern struct rk_crypto_tmp rk_cbc_aes_alg;
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extern struct rk_crypto_tmp rk_ecb_des_alg;
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extern struct rk_crypto_tmp rk_cbc_des_alg;
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extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
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extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
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extern struct rk_crypto_tmp rk_ahash_sha1;
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extern struct rk_crypto_tmp rk_ahash_sha256;
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extern struct rk_crypto_tmp rk_ahash_md5;
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struct rk_crypto_info *get_rk_crypto(void);
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#endif
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