51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022 Blake W. Felt & Angus Gratton
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mpconfig.h"
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#if MICROPY_HW_ENABLE_USBDEV
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#include "mp_usbd.h"
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#include "string.h"
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#include "tusb.h"
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#include "pico/unique_id.h"
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void mp_usbd_port_get_serial_number(char *serial_buf) {
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pico_unique_board_id_t id;
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pico_get_unique_board_id(&id);
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// convert to hex
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int hexlen = sizeof(id.id) * 2;
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MP_STATIC_ASSERT(hexlen <= MICROPY_HW_USB_DESC_STR_MAX);
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for (int i = 0; i < hexlen; i += 2) {
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static const char *hexdig = "0123456789abcdef";
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serial_buf[i] = hexdig[id.id[i / 2] >> 4];
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serial_buf[i + 1] = hexdig[id.id[i / 2] & 0x0f];
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}
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serial_buf[hexlen] = 0;
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}
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#endif
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