1 /****************************************************************************** 2 * 3 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 4 * Analog Devices, Inc.), 5 * Copyright (C) 2023-2024 Analog Devices, Inc. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 ******************************************************************************/ 20 21 #ifndef LIBRARIES_PERIPHDRIVERS_SOURCE_AES_AES_REVB_H_ 22 #define LIBRARIES_PERIPHDRIVERS_SOURCE_AES_AES_REVB_H_ 23 24 #include <stdint.h> 25 #include "aes.h" 26 #include "aes_revb_regs.h" 27 #include "aeskeys_revb_regs.h" 28 #include "trng_revb_regs.h" 29 30 /** 31 * @brief Enumeration type to select AES key 32 * 33 */ 34 typedef enum { 35 MXC_AES_REVB_128BITS = MXC_S_AES_REVB_CTRL_KEY_SIZE_AES128, ///< Select AES-128 bit key 36 MXC_AES_REVB_192BITS = MXC_S_AES_REVB_CTRL_KEY_SIZE_AES192, ///< Select AES-192 bit key 37 MXC_AES_REVB_256BITS = MXC_S_AES_REVB_CTRL_KEY_SIZE_AES256, ///< Select AES-256 bit key 38 } mxc_aes_revb_keys_t; 39 40 /** 41 * @brief Enumeration type to select AES key source and encryption type 42 * 43 */ 44 typedef enum { 45 MXC_AES_REVB_ENCRYPT_EXT_KEY = 0, ///< Encryption using External key 46 MXC_AES_REVB_DECRYPT_EXT_KEY = 1, ///< Encryption using internal key 47 MXC_AES_REVB_DECRYPT_INT_KEY = 2 ///< Decryption using internal key 48 } mxc_aes_revb_enc_type_t; 49 50 /** 51 * @brief Structure used to set up AES request 52 * 53 */ 54 typedef struct _mxc_aes_revb_cipher_req_t { 55 uint32_t length; ///< Length of the data 56 uint32_t *inputData; ///< Pointer to input data 57 uint32_t *resultData; ///< Pointer to encrypted data 58 mxc_aes_revb_keys_t keySize; ///< Size of AES key 59 mxc_aes_revb_enc_type_t encryption; ///< Encrytion type or \ref mxc_aes_enc_type_t 60 mxc_aes_complete_t callback; ///< Callback function 61 } mxc_aes_revb_req_t; 62 63 int MXC_AES_RevB_Init(mxc_aes_revb_regs_t *aes); 64 void MXC_AES_RevB_EnableInt(mxc_aes_revb_regs_t *aes, uint32_t interrupt); 65 void MXC_AES_RevB_DisableInt(mxc_aes_revb_regs_t *aes, uint32_t interrupt); 66 int MXC_AES_RevB_IsBusy(mxc_aes_revb_regs_t *aes); 67 int MXC_AES_RevB_Shutdown(mxc_aes_revb_regs_t *aes); 68 void MXC_AES_RevB_GenerateKey(mxc_trng_revb_regs_t *trng); 69 void MXC_AES_RevB_SetKeySize(mxc_aes_revb_regs_t *aes, mxc_aes_revb_keys_t key); 70 mxc_aes_keys_t MXC_AES_RevB_GetKeySize(mxc_aes_revb_regs_t *aes); 71 void MXC_AES_RevB_FlushInputFIFO(mxc_aes_revb_regs_t *aes); 72 void MXC_AES_RevB_FlushOutputFIFO(mxc_aes_revb_regs_t *aes); 73 void MXC_AES_RevB_Start(mxc_aes_revb_regs_t *aes); 74 uint32_t MXC_AES_RevB_GetFlags(mxc_aes_revb_regs_t *aes); 75 void MXC_AES_RevB_ClearFlags(mxc_aes_revb_regs_t *aes, uint32_t flags); 76 int MXC_AES_RevB_Generic(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req); 77 int MXC_AES_RevB_Encrypt(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req); 78 int MXC_AES_RevB_Decrypt(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req); 79 int MXC_AES_RevB_TXDMAConfig(void *src_addr, int len); 80 int MXC_AES_RevB_RXDMAConfig(void *dest_addr, int len); 81 int MXC_AES_RevB_GenericAsync(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req, uint8_t enc); 82 int MXC_AES_RevB_EncryptAsync(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req); 83 int MXC_AES_RevB_DecryptAsync(mxc_aes_revb_regs_t *aes, mxc_aes_revb_req_t *req); 84 void MXC_AES_RevB_DMACallback(int ch, int error); 85 void MXC_AES_RevB_SetExtKey(mxc_aeskeys_revb_regs_t *aeskey, const void *key, mxc_aes_keys_t len); 86 87 #endif // LIBRARIES_PERIPHDRIVERS_SOURCE_AES_AES_REVB_H_ 88
