linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Cryptographic API.

 *

 * Support for ATMEL DES/TDES HW acceleration.

 *

 * Copyright (c) 2012 Eukréa Electromatique - ATMEL

 * Author: Nicolas Royer <nicolas@eukrea.com>

 *

 * Some ideas are from omap-aes.c drivers.

 */

​

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/err.h>

#include <linux/clk.h>

#include <linux/io.h>

#include <linux/hw_random.h>

#include <linux/platform_device.h>

​

#include <linux/device.h>

#include <linux/init.h>

#include <linux/errno.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/scatterlist.h>

#include <linux/dma-mapping.h>

#include <linux/of_device.h>

#include <linux/delay.h>

#include <linux/crypto.h>

#include <linux/cryptohash.h>

#include <crypto/scatterwalk.h>

#include <crypto/algapi.h>

#include <crypto/des.h>

#include <crypto/hash.h>

#include <crypto/internal/hash.h>

#include <linux/platform_data/crypto-atmel.h>

#include "atmel-tdes-regs.h"

​

/* TDES flags  */

#define TDES_FLAGS_MODE_MASK        0x00ff

#define TDES_FLAGS_ENCRYPT  BIT(0)

#define TDES_FLAGS_CBC      BIT(1)

#define TDES_FLAGS_CFB      BIT(2)

#define TDES_FLAGS_CFB8     BIT(3)

#define TDES_FLAGS_CFB16    BIT(4)

#define TDES_FLAGS_CFB32    BIT(5)

#define TDES_FLAGS_CFB64    BIT(6)

#define TDES_FLAGS_OFB      BIT(7)

​

#define TDES_FLAGS_INIT     BIT(16)

#define TDES_FLAGS_FAST     BIT(17)

#define TDES_FLAGS_BUSY     BIT(18)

#define TDES_FLAGS_DMA      BIT(19)

​

#define ATMEL_TDES_QUEUE_LENGTH 50

​

#define CFB8_BLOCK_SIZE     1

#define CFB16_BLOCK_SIZE    2

#define CFB32_BLOCK_SIZE    4

​