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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 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 "lib/oofatfs/ff.h"
#include "py/mpconfig.h"
#include "py/mphal.h"
#include "py/mpstate.h"
#include "py/runtime.h"
#include "py/stream.h"
#include "supervisor/shared/status_leds.h"
#if CIRCUITPY_WATCHDOG
#include "shared-bindings/watchdog/__init__.h"
#define WATCHDOG_EXCEPTION_CHECK() (MP_STATE_VM(mp_pending_exception) == &mp_watchdog_timeout_exception)
#else
#define WATCHDOG_EXCEPTION_CHECK() 0
#endif
int mp_hal_stdin_rx_chr(void) {
for (;;) {
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP
#endif
mp_handle_pending(true);
if (serial_bytes_available()) {
toggle_rx_led();
return serial_read();
}
}
}
void mp_hal_stdout_tx_strn(const char *str, size_t len) {
toggle_tx_led();
#ifdef CIRCUITPY_BOOT_OUTPUT_FILE
if (boot_output != NULL) {
// Ensure boot_out.txt is capped at 1 filesystem block and ends with a newline
if (len + boot_output->len > 508) {
vstr_add_str(boot_output, "...\n");
boot_output = NULL;
} else {
vstr_add_strn(boot_output, str, len);
}
}
#endif
serial_write_substring(str, len);
}
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
uintptr_t ret = 0;
if ((poll_flags & MP_STREAM_POLL_RD) && serial_bytes_available()) {
ret |= MP_STREAM_POLL_RD;
}
return ret;
}
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