80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "supervisor/serial.h"
|
|
|
|
#include "common-hal/usb_hid/Device.h"
|
|
|
|
#include "usb.h"
|
|
#include "genhdr/autogen_usb_descriptor.h"
|
|
|
|
// Serial number as hex characters. This writes directly to the USB
|
|
// descriptor.
|
|
void load_serial_number(void) {
|
|
char nibble_to_hex[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
|
|
'A', 'B', 'C', 'D', 'E', 'F'};
|
|
#ifdef SAMD21
|
|
uint32_t* addresses[4] = {(uint32_t *) 0x0080A00C, (uint32_t *) 0x0080A040,
|
|
(uint32_t *) 0x0080A044, (uint32_t *) 0x0080A048};
|
|
#endif
|
|
#ifdef SAMD51
|
|
uint32_t* addresses[4] = {(uint32_t *) 0x008061FC, (uint32_t *) 0x00806010,
|
|
(uint32_t *) 0x00806014, (uint32_t *) 0x00806018};
|
|
#endif
|
|
for (int i = 0; i < 4; i++) {
|
|
for (int j = 0; j < 8; j++) {
|
|
uint8_t nibble = (*(addresses[i]) >> j * 4) & 0xf;
|
|
// Strings are UTF-16-LE encoded.
|
|
serial_number[i * 16 + j * 2] = nibble_to_hex[nibble];
|
|
serial_number[i * 16 + j * 2 + 1] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void serial_init(void) {
|
|
load_serial_number();
|
|
init_usb();
|
|
usb_hid_init();
|
|
}
|
|
|
|
bool serial_connected(void) {
|
|
return usb_connected();
|
|
}
|
|
|
|
char serial_read(void) {
|
|
return usb_read();
|
|
}
|
|
|
|
bool serial_bytes_available(void) {
|
|
return usb_bytes_available();
|
|
}
|
|
|
|
void serial_write(const char* text) {
|
|
usb_write(text, strlen(text));
|
|
}
|