6e87aeb841
Upon start-up, _boot module is executed from frozen files to do early initialization, e.g. create and mount the flash filesystem. Then "boot.py" is executed if it exists in the filesystem. Finally, "main.py" is executed if exists to allow start-on-boot user applications. This allows a user to make a custom boot file or startup application without recompiling the firmware, while letting to do early initialization in Python code. Based on RFC https://github.com/micropython/micropython/issues/1955.
147 lines
4.1 KiB
C
147 lines
4.1 KiB
C
/*
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* This file is part of the Micro Python 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) 2014 Damien P. George
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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 <stdio.h>
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#include <string.h>
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#include "py/nlr.h"
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#include "py/compile.h"
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#include "py/runtime0.h"
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#include "py/runtime.h"
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#include "py/stackctrl.h"
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#include "py/mphal.h"
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#include "py/gc.h"
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#include "lib/utils/pyexec.h"
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#include "gccollect.h"
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#include "user_interface.h"
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STATIC char heap[24 * 1024];
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STATIC void mp_reset(void) {
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mp_stack_set_top((void*)0x40000000);
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mp_stack_set_limit(8192);
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mp_hal_init();
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gc_init(heap, heap + sizeof(heap));
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mp_init();
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mp_obj_list_init(mp_sys_path, 0);
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mp_obj_list_init(mp_sys_argv, 0);
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#if MICROPY_VFS_FAT
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memset(MP_STATE_PORT(fs_user_mount), 0, sizeof(MP_STATE_PORT(fs_user_mount)));
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#endif
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MP_STATE_PORT(mp_kbd_exception) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
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MP_STATE_PORT(term_obj) = MP_OBJ_NULL;
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#if MICROPY_MODULE_FROZEN
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pyexec_frozen_module("_boot");
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pyexec_file("boot.py");
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pyexec_file("main.py");
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#endif
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}
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void soft_reset(void) {
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mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
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mp_hal_delay_us(10000); // allow UART to flush output
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mp_reset();
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#if MICROPY_REPL_EVENT_DRIVEN
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pyexec_event_repl_init();
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#endif
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}
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void init_done(void) {
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#if MICROPY_REPL_EVENT_DRIVEN
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uart_task_init();
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#endif
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mp_reset();
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mp_hal_stdout_tx_str("\r\n");
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#if MICROPY_REPL_EVENT_DRIVEN
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pyexec_event_repl_init();
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#endif
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dupterm_task_init();
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#if !MICROPY_REPL_EVENT_DRIVEN
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soft_reset:
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for (;;) {
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if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
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if (pyexec_raw_repl() != 0) {
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break;
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}
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} else {
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if (pyexec_friendly_repl() != 0) {
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break;
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}
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}
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}
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soft_reset();
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goto soft_reset;
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#endif
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}
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void user_init(void) {
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system_init_done_cb(init_done);
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}
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mp_lexer_t *fat_vfs_lexer_new_from_file(const char *filename);
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mp_import_stat_t fat_vfs_import_stat(const char *path);
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mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
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#if MICROPY_VFS_FAT
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return fat_vfs_lexer_new_from_file(filename);
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#else
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(void)filename;
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return NULL;
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#endif
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}
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mp_import_stat_t mp_import_stat(const char *path) {
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#if MICROPY_VFS_FAT
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return fat_vfs_import_stat(path);
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#else
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(void)path;
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return MP_IMPORT_STAT_NO_EXIST;
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#endif
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}
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mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
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void mp_keyboard_interrupt(void) {
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MP_STATE_VM(mp_pending_exception) = MP_STATE_PORT(mp_kbd_exception);
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}
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void nlr_jump_fail(void *val) {
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printf("NLR jump failed\n");
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for (;;) {
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}
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}
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//void __assert(const char *file, int line, const char *func, const char *expr) {
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void __assert(const char *file, int line, const char *expr) {
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printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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for (;;) {
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}
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}
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