samd51_crypto.c
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1 /**
2  * @file samd51_crypto.c
3  * @brief SAMD51 hardware cryptography accelerator
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2019 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneCrypto Open.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * as published by the Free Software Foundation; either version 2
16  * of the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software Foundation,
25  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26  *
27  * @author Oryx Embedded SARL (www.oryx-embedded.com)
28  * @version 1.9.6
29  **/
30 
31 //Switch to the appropriate trace level
32 #define TRACE_LEVEL CRYPTO_TRACE_LEVEL
33 
34 //Dependencies
35 #include "samd51.h"
36 #include "pukcc/CryptoLib_typedef_pb.h"
37 #include "pukcc/CryptoLib_Headers_pb.h"
38 #include "core/crypto.h"
39 #include "hardware/samd51_crypto.h"
41 #include "debug.h"
42 
43 //Global variables
45 
46 
47 /**
48  * @brief Cryptography accelerator initialization
49  **/
50 
52 {
53  error_t error;
54 
55  //Create a mutex to prevent simultaneous access to the cryptography
56  //accelerator
58  {
59  //Failed to create mutex
61  }
62 
63  //Enable TRNG peripheral clock
64  MCLK->APBCMASK.reg |= MCLK_APBCMASK_TRNG;
65  //Enable TRNG
66  TRNG->CTRLA.reg |= TRNG_CTRLA_ENABLE;
67 
68  //Initialize public key accelerator
69  error = pukccInit();
70 
71  //Return status code
72  return error;
73 }
error_t samd51CryptoInit(void)
Cryptography accelerator initialization.
Definition: samd51_crypto.c:51
bool_t osCreateMutex(OsMutex *mutex)
Create a mutex object.
error_t
Error codes.
Definition: error.h:42
OsMutex samd51CryptoMutex
Definition: samd51_crypto.c:44
General definitions for cryptographic algorithms.
SAMD51 PUKCC public key accelerator.
Mutex object.
error_t pukccInit(void)
Initialize PUKCC public key accelerator.
SAMD51 hardware cryptography accelerator.
Debugging facilities.