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/**
*********************************************************************************
*
* @file ald_crypt.h
* @brief Header file of CRYPT module driver.
*
* @version V1.0
* @date 7 Dec 2017
* @author AE Team
* @note
*
* Copyright (C) Shanghai Eastsoft Microelectronics Co. Ltd. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*********************************************************************************
*/
#ifndef __ALD_CRYPT_H__
#define __ALD_CRYPT_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "utils.h"
#include "ald_dma.h"
/** @addtogroup ES32FXXX_ALD
* @{
*/
/** @addtogroup CRYPT
* @{
*/
/** @defgroup CRYPT_Public_Types CRYPT Public Types
* @{
*/
/**
* @brief CRYPT encrypt or decrypt select
*/
typedef enum {
CRYPT_DECRYPT = 0U, /**< Decrypt */
CRYPT_ENCRYPT = 1U, /**< Encrypt */
} crypt_encs_t;
/**
* @brief CRYPT mode select
*/
typedef enum {
CRYPT_MODE_ECB = 0U, /**< ECB */
CRYPT_MODE_CBC = 1U, /**< CBC */
CRYPT_MODE_CTR = 2U, /**< CTR */
} crypt_mode_t;
/**
* @brief CRYPT data type
*/
typedef enum {
CRYPT_DATA_CHANGE_NO = 0U, /**< No exchange */
CRYPT_DATA_CHANGE_16 = 1U, /**< 16bit exchange */
CRYPT_DATA_CHANGE_8 = 2U, /**< 8bit exchange */
CRYPT_DATA_CHANGE_1 = 3U, /**< 1bit exchange */
} crypt_datatype_t;
/**
* @brief CRYPT interrupt
*/
typedef enum {
CRYPT_IT_IT = 0x80U, /**< Interrupt */
} crypt_it_t;
/**
* @brief CRYPT interrupt flag
*/
typedef enum {
CRYPT_FLAG_AESIF = 0x1U, /**< Aes flag */
CRYPT_FLAG_DONE = 0x100U, /**< Complete flag */
} crypt_flag_t;
/**
* @brief CRYPT state structures definition
*/
typedef enum {
CRYPT_STATE_RESET = 0x0U, /**< Peripheral is not initialized */
CRYPT_STATE_READY = 0x1U, /**< Peripheral Initialized and ready for use */
CRYPT_STATE_BUSY = 0x2U, /**< An internal process is ongoing */
CRYPT_STATE_ERROR = 0x4U, /**< Error */
} crypt_state_t;
/**
* @brief CRYPT data type
*/
typedef enum {
DATA_32_BIT = 0U, /**< 32 bit data,don't swap */
DATA_16_BIT = 1U, /**< 16 bit data,swap */
DATA_8_BIT = 2U, /**< 8 bit data,swap */
DATA_1_BIT = 3U, /**< 1 bit data, swap */
} crypt_data_t;
/**
* @brief CRYPT init structure definition
*/
typedef struct {
crypt_mode_t mode; /**< Crypt mode */
crypt_data_t type; /**< Data type select */
} crypt_init_t;
/**
* @brief CRYPT Handle Structure definition
*/
typedef struct crypt_handle_s {
CRYPT_TypeDef *perh; /**< Register base address */
crypt_init_t init; /**< CRYPT required parameters */
#ifdef ALD_DMA
dma_handle_t hdma_m2p; /**< CRYPT DMA handle parameters memory to crypt module */
dma_handle_t hdma_p2m; /**< CRYPT DMA handle parameters crypt module to memory */
#endif
uint8_t *plain_text; /**< Pointer to plain text */
uint8_t *cipher_text; /**< Pointer to cipher text */
uint32_t size; /**< The size of crypt data buf */
uint32_t count; /**< The count of crypt data buf */
uint32_t step; /**< The step of once crypt 4(aes) */
uint32_t dir; /**< ENCRYPT or DECRYPT */
uint32_t iv[4]; /**< The iv of crypt */
uint32_t key[4]; /**< The key of crypt */
lock_state_t lock; /**< Locking object */
crypt_state_t state; /**< CRYPT operation state */
void (*crypt_cplt_cbk)(struct crypt_handle_s *arg); /**< Crypt completed callback */
void (*err_cplt_cbk)(struct crypt_handle_s *arg); /**< Crypt error callback */
} crypt_handle_t;
/**
* @}
*/
/** @defgroup CRYPT_Public_Macros CRYPT Public Macros
* @{
*/
#define CRYPT_GO(handle) (SET_BIT((handle)->perh->CON, CRYPT_CON_GO_MSK))
#define CRYPT_FIFOEN_ENABLE(handle) (SET_BIT((handle)->perh->CON, CRYPT_CON_FIFOEN_MSK))
#define CRYPT_FIFOEN_DISABLE(handle) (CLEAR_BIT((handle)->perh->CON, CRYPT_CON_FIFOEN_MSK))
#define CRYPT_IVEN_ENABLE(handle) (SET_BIT((handle)->perh->CON, CRYPT_CON_IVEN_MSK))
#define CRYPT_IVEN_DISABLE(handle) (CLEAR_BIT((handle)->perh->CON, CRYPT_CON_IVEN_MSK))
#define CRYPT_IE_ENABLE(handle) (SET_BIT((handle)->perh->CON, CRYPT_CON_IE_MSK))
#define CRYPT_IE_DISABLE(handle) (CLEAR_BIT((handle)->perh->CON, CRYPT_CON_IE_MSK))
#define CRYPT_DMA_ENABLE(handle) (SET_BIT((handle)->perh->CON, CRYPT_CON_DMAEN_MSK))
#define CRYPT_DMA_DISABLE(handle) (CLEAR_BIT((handle)->perh->CON, CRYPT_CON_DMAEN_MSK))
#define CRYPT_SETDIR(handle, dir) do {(handle)->perh->CON &= ~(0x1 << CRYPT_CON_ENCS_POS); \
(handle)->perh->CON |= (dir << CRYPT_CON_ENCS_POS);} while (0)
#define CRYPT_WRITE_FIFO(handle, data) ((handle)->perh->FIFO = (data))
#define CRYPT_READ_FIFO(handle) ((handle)->perh->FIFO)
/**
* @}
*/
/** @defgroup CRYPT_Private_Macros CRYPT Private Macros
* @{
*/
#define IS_CRYPT(x) ((x) == CRYPT)
#define IS_CRYPT_MODE(x) (((x) == CRYPT_MODE_ECB) || \
((x) == CRYPT_MODE_CBC) || \
((x) == CRYPT_MODE_CTR))
#define IS_CRYPT_IT(x) ((x) == CRYPT_IT_IT)
#define IS_CRYPT_FLAG(x) (((x) == CRYPT_FLAG_AESIF) || \
((x) == CRYPT_FLAG_DONE))
#define IS_CRYPT_IV_LEN(x) (((x) == IV_2_LEN) || \
((x) == IV_4_LEN))
/**
* @}
*/
/** @addtogroup CRYPT_Public_Functions
* @{
*/
/** @addtogroup CRYPT_Public_Functions_Group1
* @{
*/
ald_status_t ald_crypt_init(crypt_handle_t *hperh);
ald_status_t ald_crypt_write_key(crypt_handle_t *hperh, uint32_t *key);
ald_status_t ald_crypt_read_key(crypt_handle_t *hperh, uint32_t *key);
ald_status_t ald_crypt_write_ivr(crypt_handle_t *hperh, uint32_t *iv);
ald_status_t ald_crypt_read_ivr(crypt_handle_t *hperh, uint32_t *iv);
/**
* @}
*/
/** @addtogroup CRYPT_Public_Functions_Group2
* @{
*/
ald_status_t ald_crypt_encrypt(crypt_handle_t *hperh, uint8_t *plain_text, uint8_t *cipher_text, uint32_t size);
ald_status_t ald_crypt_decrypt(crypt_handle_t *hperh, uint8_t *cipher_text, uint8_t *plain_text, uint32_t size);
ald_status_t ald_crypt_gcm_verify(crypt_handle_t *hperh, uint8_t *cipher_text, uint32_t size, uint8_t *aadata, uint32_t alen, uint8_t *tag);
ald_status_t ald_crypt_encrypt_by_it(crypt_handle_t *hperh, uint8_t *plain_text, uint8_t *cipher_text, uint32_t size);
ald_status_t ald_crypt_decrypt_by_it(crypt_handle_t *hperh, uint8_t *cipher_text, uint8_t *plain_text, uint32_t size);
#ifdef ALD_DMA
ald_status_t ald_crypt_encrypt_by_dma(crypt_handle_t *hperh, uint8_t *plain_text,
uint8_t *cipher_text, uint32_t size, uint8_t channel_m2p, uint8_t channel_p2m);
ald_status_t ald_crypt_decrypt_by_dma(crypt_handle_t *hperh, uint8_t *cipher_text,
uint8_t *plain_text, uint32_t size, uint8_t channel_m2p, uint8_t channel_p2m);
#endif
/**
* @}
*/
/** @addtogroup CRYPT_Public_Functions_Group3
* @{
*/
#ifdef ALD_DMA
ald_status_t ald_crypt_dma_pause(crypt_handle_t *hperh);
ald_status_t ald_crypt_dma_resume(crypt_handle_t *hperh);
ald_status_t ald_crypt_dma_stop(crypt_handle_t *hperh);
#endif
void ald_crypt_irq_handler(crypt_handle_t *hperh);
/**
* @}
*/
/** @addtogroup CRYPT_Public_Functions_Group4
* @{
*/
void ald_crypt_interrupt_config(crypt_handle_t *hperh, crypt_it_t it, type_func_t state);
flag_status_t ald_crypt_get_flag_status(crypt_handle_t *hperh, crypt_flag_t flag);
void ald_crypt_clear_flag_status(crypt_handle_t *hperh, crypt_flag_t flag);
it_status_t ald_crypt_get_it_status(crypt_handle_t *hperh, crypt_it_t it);
/**
* @}
*/
/** @addtogroup CRYPT_Public_Functions_Group5
* @{
*/
crypt_state_t ald_crypt_get_state(crypt_handle_t *hperh);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif
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