73840f840d
* write any partial message * instead of "..." show a sensible (translatable) message This does slightly lower the amount of data that can be printed, and makes the exact amount dependent on the language. However, if boot.py intentionally needs to produce larger amounts of output, it can deliberately mount the filesystem in RW mode and perform any writes needed. In that case it's up to the boot.py to choose an appropriate way to limit the number of writes if needed for the application.
91 lines
3.1 KiB
C
91 lines
3.1 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 Scott Shawcroft for Adafruit Industries
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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 <string.h>
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#include "supervisor/serial.h"
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#include "lib/oofatfs/ff.h"
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#include "py/mpconfig.h"
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#include "py/mphal.h"
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#include "py/mpstate.h"
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#include "py/runtime.h"
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#include "py/stream.h"
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#include "supervisor/shared/status_leds.h"
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#if CIRCUITPY_WATCHDOG
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#include "shared-bindings/watchdog/__init__.h"
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#define WATCHDOG_EXCEPTION_CHECK() (MP_STATE_VM(mp_pending_exception) == &mp_watchdog_timeout_exception)
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#else
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#define WATCHDOG_EXCEPTION_CHECK() 0
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#endif
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int mp_hal_stdin_rx_chr(void) {
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for (;;) {
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#ifdef MICROPY_VM_HOOK_LOOP
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MICROPY_VM_HOOK_LOOP
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#endif
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mp_handle_pending(true);
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if (serial_bytes_available()) {
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toggle_rx_led();
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return serial_read();
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}
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}
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}
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void mp_hal_stdout_tx_strn(const char *str, size_t len) {
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toggle_tx_led();
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#ifdef CIRCUITPY_BOOT_OUTPUT_FILE
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if (boot_output != NULL) {
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// Ensure boot_out.txt is capped at 1 filesystem block and ends with a newline
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#define TRUNCATED translate("[truncated due to length]")
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size_t truncated_message_len = decompress_length(TRUNCATED);
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size_t maxlen = 512 - truncated_message_len; // includes trailing '\0' so we do not need to account for trailing newline '\n' in vstr_add_byte
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if (len + boot_output->len > maxlen) {
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size_t remaining_len = maxlen - boot_output->len;
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vstr_add_strn(boot_output, str, remaining_len);
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char buf[truncated_message_len];
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vstr_add_str(boot_output, decompress(TRUNCATED, buf));
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vstr_add_byte(boot_output, '\n');
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boot_output = NULL;
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} else {
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vstr_add_strn(boot_output, str, len);
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}
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}
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#endif
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serial_write_substring(str, len);
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}
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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 ((poll_flags & MP_STREAM_POLL_RD) && serial_bytes_available()) {
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ret |= MP_STREAM_POLL_RD;
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}
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return ret;
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}
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