93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/* Copyright 2018 Canaan Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _DRIVER_AES_H
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#define _DRIVER_AES_H
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#include <stdint.h>
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#include "encoding.h"
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#include "platform.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _aes_mode_ctl
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{
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/* set the first bit and second bit 00:ecb; 01:cbc,10：aes_gcm */
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uint32_t cipher_mode : 3;
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/* [4:3]:00:128; 01:192; 10:256;11:reserved*/
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uint32_t kmode : 2;
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uint32_t endian : 6;
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uint32_t stream_mode : 3;
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uint32_t reserved : 18;
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} __attribute__((packed, aligned(4))) aes_mode_ctl;
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/**
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* @brief AES
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*/
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typedef struct _aes
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{
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uint32_t aes_key[4];
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/* 0: encrption ; 1: dencrption */
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uint32_t encrypt_sel;
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/**
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* [1:0], Set the first bit and second bit 00:ecb; 01:cbc;
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* 10,11：aes_gcm
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*/
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aes_mode_ctl mode_ctl;
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uint32_t aes_iv[4];
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/* aes interrupt enable */
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uint32_t aes_endian;
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/* aes interrupt flag */
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uint32_t aes_finish;
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/* gcm add data begin address */
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uint32_t dma_sel;
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/* gcm add data end address */
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uint32_t gb_aad_end_adr;
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/* gcm plantext/ciphter text data begin address */
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uint32_t gb_pc_ini_adr;
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/* gcm plantext/ciphter text data end address */
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uint32_t gb_pc_end_adr;
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/* gcm plantext/ciphter text data */
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uint32_t aes_text_data;
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/* AAD data */
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uint32_t aes_aad_data;
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/**
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* [1:0],00:check not finish; 01: check fail; 10: check success;11:
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* reversed
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*/
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uint32_t tag_chk;
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/* data can input flag 1: data can input; 0 : data cannot input */
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uint32_t data_in_flag;
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/* gcm input tag for compare with the calculate tag */
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uint32_t gcm_in_tag[4];
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/* gcm plantext/ciphter text data */
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uint32_t aes_out_data;
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uint32_t gb_aes_en;
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/* data can output flag 1: data ready 0: data not ready */
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uint32_t data_out_flag;
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/* allow tag input when use GCM */
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uint32_t tag_in_flag;
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uint32_t tag_clear;
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uint32_t gcm_out_tag[4];
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uint32_t aes_key_ext[4];
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} __attribute__((packed, aligned(4))) aes_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _DRIVER_AES_H */
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