85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
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/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "app_usbd_serial_num.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include "app_usbd.h"
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#define SERIAL_NUMBER_STRING_SIZE (12)
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/**@brief Serial number generated.
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*
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* Serial number generated by the @ref serial_number_string_create function.
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*/
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uint8_t g_extern_serial_number[SERIAL_NUMBER_STRING_SIZE + 1];
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/**@brief Function for creating the serial number string from a regular C string.
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*
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* @param[in] p_serial_number_string The serial number string. Must be terminated with \0.
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*/
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static void string_create(char * p_serial_number_string)
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{
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for (uint32_t i = 0; i < strlen(p_serial_number_string); i++)
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{
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g_extern_serial_number[i] = (uint8_t)p_serial_number_string[i];
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}
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}
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void app_usbd_serial_num_generate(void)
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{
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char serial_number_string[SERIAL_NUMBER_STRING_SIZE + 1];
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const uint16_t serial_num_high_bytes = (uint16_t)NRF_FICR->DEVICEADDR[1] | 0xC000; // The masking makes the address match the Random Static BLE address.
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const uint32_t serial_num_low_bytes = NRF_FICR->DEVICEADDR[0];
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(void)snprintf(serial_number_string,
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SERIAL_NUMBER_STRING_SIZE + 1,
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"%04"PRIX16"%08"PRIX32,
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serial_num_high_bytes,
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serial_num_low_bytes);
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string_create(serial_number_string);
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}
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