micropython/ports/samd/main.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* 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 "py/compile.h"
#include "py/runtime.h"
#include "py/gc.h"
#include "py/mperrno.h"
#include "py/stackctrl.h"
#include "shared/readline/readline.h"
#include "shared/runtime/gchelper.h"
#include "shared/runtime/pyexec.h"
#include "shared/runtime/softtimer.h"
extern uint8_t _sstack, _estack, _sheap, _eheap;
extern void adc_deinit_all(void);
extern void pin_irq_deinit_all(void);
extern void pwm_deinit_all(void);
extern void sercom_deinit_all(void);
void samd_main(void) {
mp_stack_set_top(&_estack);
mp_stack_set_limit(&_estack - &_sstack - 1024);
for (;;) {
gc_init(&_sheap, &_eheap);
mp_init();
// Initialise sub-systems.
readline_init0();
// Execute _boot.py to set up the filesystem.
pyexec_frozen_module("_boot.py", false);
// Execute user scripts.
int ret = pyexec_file_if_exists("boot.py");
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
// Do not execute main.py if boot.py failed
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL && ret != 0) {
ret = pyexec_file_if_exists("main.py");
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
}
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
soft_reset_exit:
mp_printf(MP_PYTHON_PRINTER, "MPY: soft reboot\n");
adc_deinit_all();
pin_irq_deinit_all();
pwm_deinit_all();
sercom_deinit_all();
soft_timer_deinit();
gc_sweep_all();
mp_deinit();
}
}
void gc_collect(void) {
gc_collect_start();
gc_helper_collect_regs_and_stack();
gc_collect_end();
}
void nlr_jump_fail(void *val) {
for (;;) {
}
}
void abort(void) {
for (;;) {
}
}
#ifndef NDEBUG
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
mp_printf(MP_PYTHON_PRINTER, "Assertion '%s' failed, at file %s:%d\n", expr, file, line);
for (;;) {
}
}
#endif