320 lines
8.8 KiB
C
320 lines
8.8 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) 2018,2021 Damien P. George
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* Copyright (c) 2021,2022 Renesas Electronics Corporation
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* Copyright (c) 2023 Arduino SA
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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/runtime.h"
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#include "py/stream.h"
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#include "py/mphal.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "py/ringbuf.h"
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#include "extmod/misc.h"
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#include "shared/runtime/interrupt_char.h"
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#include "tusb.h"
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#include "uart.h"
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#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE
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void flash_cache_commit(void);
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#endif
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#if MICROPY_HW_ENABLE_UART_REPL || MICROPY_HW_USB_CDC
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#ifndef MICROPY_HW_STDIN_BUFFER_LEN
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#define MICROPY_HW_STDIN_BUFFER_LEN 512
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#endif
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STATIC uint8_t stdin_ringbuf_array[MICROPY_HW_STDIN_BUFFER_LEN];
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ringbuf_t stdin_ringbuf = { stdin_ringbuf_array, sizeof(stdin_ringbuf_array) };
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#endif
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// this table converts from HAL_StatusTypeDef to POSIX errno
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const byte mp_hal_status_to_errno_table[4] = {
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[HAL_OK] = 0,
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[HAL_ERROR] = MP_EIO,
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[HAL_BUSY] = MP_EBUSY,
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[HAL_TIMEOUT] = MP_ETIMEDOUT,
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};
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NORETURN void mp_hal_raise(HAL_StatusTypeDef status) {
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mp_raise_OSError(mp_hal_status_to_errno_table[status]);
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}
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#if MICROPY_HW_USB_CDC
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uint8_t cdc_itf_pending; // keep track of cdc interfaces which need attention to poll
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void poll_cdc_interfaces(void) {
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// any CDC interfaces left to poll?
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if (cdc_itf_pending && ringbuf_free(&stdin_ringbuf)) {
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for (uint8_t itf = 0; itf < 8; ++itf) {
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if (cdc_itf_pending & (1 << itf)) {
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tud_cdc_rx_cb(itf);
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if (!cdc_itf_pending) {
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break;
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}
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}
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}
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}
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}
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void tud_cdc_rx_cb(uint8_t itf) {
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// consume pending USB data immediately to free usb buffer and keep the endpoint from stalling.
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// in case the ringbuffer is full, mark the CDC interface that need attention later on for polling
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cdc_itf_pending &= ~(1 << itf);
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for (uint32_t bytes_avail = tud_cdc_n_available(itf); bytes_avail > 0; --bytes_avail) {
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if (ringbuf_free(&stdin_ringbuf)) {
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int data_char = tud_cdc_read_char();
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if (data_char == mp_interrupt_char) {
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mp_sched_keyboard_interrupt();
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} else {
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ringbuf_put(&stdin_ringbuf, data_char);
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}
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} else {
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cdc_itf_pending |= (1 << itf);
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return;
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}
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}
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}
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#endif
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uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
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uintptr_t ret = 0;
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#if MICROPY_HW_USB_CDC
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poll_cdc_interfaces();
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#endif
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#if MICROPY_HW_ENABLE_UART_REPL || MICROPY_HW_USB_CDC
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if ((poll_flags & MP_STREAM_POLL_RD) && ringbuf_peek(&stdin_ringbuf) != -1) {
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ret |= MP_STREAM_POLL_RD;
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}
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if (poll_flags & MP_STREAM_POLL_WR) {
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#if MICROPY_HW_ENABLE_UART_REPL
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ret |= MP_STREAM_POLL_WR;
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#else
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if (tud_cdc_connected() && tud_cdc_write_available() > 0) {
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ret |= MP_STREAM_POLL_WR;
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}
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#endif
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}
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#endif
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#if MICROPY_PY_OS_DUPTERM
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ret |= mp_os_dupterm_poll(poll_flags);
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#endif
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return ret;
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}
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// Receive single character
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int mp_hal_stdin_rx_chr(void) {
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for (;;) {
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#if MICROPY_HW_USB_CDC
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poll_cdc_interfaces();
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#endif
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#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE
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flash_cache_commit();
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#endif
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int c = ringbuf_get(&stdin_ringbuf);
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if (c != -1) {
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return c;
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}
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#if MICROPY_PY_OS_DUPTERM
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int dupterm_c = mp_os_dupterm_rx_chr();
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if (dupterm_c >= 0) {
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return dupterm_c;
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}
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#endif
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MICROPY_EVENT_POLL_HOOK
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}
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}
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// Send string of given length
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void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
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#if MICROPY_HW_ENABLE_UART_REPL
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if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
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uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
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}
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#endif
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#if MICROPY_HW_USB_CDC
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if (tud_cdc_connected()) {
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for (size_t i = 0; i < len;) {
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uint32_t n = len - i;
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if (n > CFG_TUD_CDC_EP_BUFSIZE) {
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n = CFG_TUD_CDC_EP_BUFSIZE;
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}
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int timeout = 0;
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// Wait with a max of USC_CDC_TIMEOUT ms
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while (n > tud_cdc_write_available() && timeout++ < MICROPY_HW_USB_CDC_TX_TIMEOUT) {
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MICROPY_EVENT_POLL_HOOK
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}
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if (timeout >= MICROPY_HW_USB_CDC_TX_TIMEOUT) {
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break;
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}
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uint32_t n2 = tud_cdc_write(str + i, n);
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tud_cdc_write_flush();
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i += n2;
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}
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}
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#endif
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#if MICROPY_PY_OS_DUPTERM
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mp_os_dupterm_tx_strn(str, len);
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#endif
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}
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void mp_hal_ticks_cpu_enable(void) {
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}
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void mp_hal_pin_config(mp_hal_pin_obj_t pin_obj, uint32_t mode, uint32_t pull, uint32_t drive, uint32_t alt) {
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ra_gpio_config(pin_obj->pin, mode, pull, drive, alt);
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}
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/*******************************************************************************/
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// MAC address
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// Generate a random locally administered MAC address (LAA)
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void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]) {
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uint8_t *id = (uint8_t *)MP_HAL_UNIQUE_ID_ADDRESS;
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buf[0] = 0x02; // LAA range
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buf[1] = (id[11] << 4) | (id[10] & 0xf);
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buf[2] = (id[9] << 4) | (id[8] & 0xf);
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buf[3] = (id[7] << 4) | (id[6] & 0xf);
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buf[4] = id[2];
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buf[5] = (id[0] << 2) | idx;
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}
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// A board can override this if needed
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MP_WEAK void mp_hal_get_mac(int idx, uint8_t buf[6]) {
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mp_hal_generate_laa_mac(idx, buf);
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}
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void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest) {
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static const char hexchr[16] = "0123456789ABCDEF";
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uint8_t mac[6];
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mp_hal_get_mac(idx, mac);
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for (; chr_len; ++chr_off, --chr_len) {
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*dest++ = hexchr[mac[chr_off >> 1] >> (4 * (1 - (chr_off & 1))) & 0xf];
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}
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}
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#if MICROPY_HW_ENABLE_USBDEV
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void usbfs_interrupt_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_int_handler(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_int_handler(0);
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#endif
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}
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void usbfs_resume_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_int_handler(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_int_handler(0);
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#endif
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}
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void usbfs_d0fifo_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_int_handler(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_int_handler(0);
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#endif
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}
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void usbfs_d1fifo_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_int_handler(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_int_handler(0);
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#endif
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}
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void usbhs_interrupt_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
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tuh_int_handler(1);
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#endif
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
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tud_int_handler(1);
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#endif
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}
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void usbhs_d0fifo_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
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tuh_int_handler(1);
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#endif
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
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tud_int_handler(1);
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#endif
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}
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void usbhs_d1fifo_handler(void) {
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
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tuh_int_handler(1);
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#endif
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
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tud_int_handler(1);
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#endif
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}
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#endif
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MP_REGISTER_ROOT_POINTER(struct _machine_uart_obj_t *pyb_stdio_uart);
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