444 lines
13 KiB
C
444 lines
13 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) 2013-2020 Damien P. George
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* Copyright (c) 2021,2022 Renesas Electronics Corporation
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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/runtime.h"
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#include "py/stackctrl.h"
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#include "py/gc.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "shared/readline/readline.h"
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#include "shared/runtime/pyexec.h"
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#include "shared/runtime/softtimer.h"
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#include "lib/oofatfs/ff.h"
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#include "lib/littlefs/lfs1.h"
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#include "lib/littlefs/lfs1_util.h"
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#include "lib/littlefs/lfs2.h"
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#include "lib/littlefs/lfs2_util.h"
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#include "extmod/vfs.h"
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#include "extmod/vfs_fat.h"
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#include "extmod/vfs_lfs.h"
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#include "boardctrl.h"
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#include "systick.h"
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#include "pendsv.h"
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#include "powerctrl.h"
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#include "pybthread.h"
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#include "gccollect.h"
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#include "factoryreset.h"
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#include "modmachine.h"
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#include "spi.h"
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#include "uart.h"
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#include "timer.h"
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#include "led.h"
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#include "pin.h"
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#include "extint.h"
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#include "usrsw.h"
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#include "rtc.h"
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#include "storage.h"
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#include "tusb.h"
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#if MICROPY_PY_LWIP
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#include "lwip/init.h"
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#include "lwip/apps/mdns.h"
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#endif
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#if MICROPY_PY_BLUETOOTH
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#include "mpbthciport.h"
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#include "extmod/modbluetooth.h"
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#endif
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#include "extmod/modnetwork.h"
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#define RA_EARLY_PRINT 1 /* for enabling mp_print in boardctrl. */
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#if MICROPY_PY_THREAD
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STATIC pyb_thread_t pyb_thread_main;
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#endif
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#if defined(MICROPY_HW_UART_REPL)
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#ifndef MICROPY_HW_UART_REPL_RXBUF
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#define MICROPY_HW_UART_REPL_RXBUF (260)
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#endif
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STATIC machine_uart_obj_t machine_uart_repl_obj;
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STATIC uint8_t machine_uart_repl_rxbuf[MICROPY_HW_UART_REPL_RXBUF];
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#endif
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void NORETURN __fatal_error(const char *msg) {
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for (volatile uint delay = 0; delay < 1000000; delay++) {
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}
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led_state(1, 1);
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led_state(2, 1);
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led_state(3, 1);
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led_state(4, 1);
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mp_hal_stdout_tx_strn("\nFATAL ERROR:\n", 14);
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mp_hal_stdout_tx_strn(msg, strlen(msg));
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for (uint i = 0;;) {
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led_toggle(((i++) & 3) + 1);
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for (volatile uint delay = 0; delay < 1000000; delay++) {
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}
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if (i >= 16) {
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// to conserve power
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__WFI();
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}
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}
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}
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void nlr_jump_fail(void *val) {
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printf("FATAL: uncaught exception %p\n", val);
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mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(val));
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__fatal_error("");
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}
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void abort(void) {
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__fatal_error("abort");
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}
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#ifndef NDEBUG
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void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
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(void)func;
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printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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__fatal_error("");
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}
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#endif
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STATIC mp_obj_t pyb_main(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_opt, MP_ARG_INT, {.u_int = 0} }
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};
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if (mp_obj_is_str(pos_args[0])) {
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MP_STATE_PORT(pyb_config_main) = pos_args[0];
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// parse args
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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#if MICROPY_ENABLE_COMPILER
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MP_STATE_VM(mp_optimise_value) = args[0].u_int;
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#endif
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(pyb_main_obj, 1, pyb_main);
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#if MICROPY_HW_FLASH_MOUNT_AT_BOOT
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// avoid inlining to avoid stack usage within main()
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MP_NOINLINE STATIC bool init_flash_fs(uint reset_mode) {
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if (reset_mode == BOARDCTRL_RESET_MODE_FACTORY_FILESYSTEM) {
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// Asked by user to reset filesystem
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factory_reset_create_filesystem();
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}
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// Default block device to entire flash storage
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mp_obj_t bdev = MP_OBJ_FROM_PTR(&pyb_flash_obj);
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int ret;
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#if MICROPY_VFS_LFS1 || MICROPY_VFS_LFS2
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// Try to detect the block device used for the main filesystem based on the
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// contents of the superblock, which can be the first or second block.
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mp_int_t len = -1;
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uint8_t buf[64];
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for (size_t block_num = 0; block_num <= 1; ++block_num) {
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ret = storage_readblocks_ext(buf, block_num, 0, sizeof(buf));
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#if MICROPY_VFS_LFS1
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if (ret == 0 && memcmp(&buf[40], "littlefs", 8) == 0) {
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// LFS1
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lfs1_superblock_t *superblock = (void *)&buf[12];
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uint32_t block_size = lfs1_fromle32(superblock->d.block_size);
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uint32_t block_count = lfs1_fromle32(superblock->d.block_count);
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len = block_count * block_size;
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break;
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}
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#endif
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#if MICROPY_VFS_LFS2
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if (ret == 0 && memcmp(&buf[8], "littlefs", 8) == 0) {
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// LFS2
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lfs2_superblock_t *superblock = (void *)&buf[20];
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uint32_t block_size = lfs2_fromle32(superblock->block_size);
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uint32_t block_count = lfs2_fromle32(superblock->block_count);
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len = block_count * block_size;
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break;
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}
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#endif
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}
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if (len != -1) {
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// Detected a littlefs filesystem so create correct block device for it
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mp_obj_t args[] = { MP_OBJ_NEW_QSTR(MP_QSTR_len), MP_OBJ_NEW_SMALL_INT(len) };
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bdev = MP_OBJ_TYPE_GET_SLOT(&pyb_flash_type, make_new)(&pyb_flash_type, 0, 1, args);
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}
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#endif
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// Try to mount the flash on "/flash" and chdir to it for the boot-up directory.
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mp_obj_t mount_point = MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash);
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ret = mp_vfs_mount_and_chdir_protected(bdev, mount_point);
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if (ret == -MP_ENODEV && bdev == MP_OBJ_FROM_PTR(&pyb_flash_obj)
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&& reset_mode != BOARDCTRL_RESET_MODE_FACTORY_FILESYSTEM) {
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// No filesystem, bdev is still the default (so didn't detect a possibly corrupt littlefs),
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// and didn't already create a filesystem, so try to create a fresh one now.
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ret = factory_reset_create_filesystem();
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if (ret == 0) {
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ret = mp_vfs_mount_and_chdir_protected(bdev, mount_point);
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}
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}
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if (ret != 0) {
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printf("MPY: can't mount flash\n");
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return false;
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}
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return true;
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}
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#endif
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int main(void) {
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// Hook for a board to run code at start up, for example check if a
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// bootloader should be entered instead of the main application.
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MICROPY_BOARD_STARTUP();
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// Initialize interrupt, systick and internal flash for RA.
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ra_init();
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MICROPY_BOARD_EARLY_INIT();
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// basic sub-system init
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#if MICROPY_PY_THREAD
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pyb_thread_init(&pyb_thread_main);
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#endif
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pendsv_init();
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led_init();
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#if MICROPY_HW_HAS_SWITCH
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switch_init0();
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#endif
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machine_init();
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#if MICROPY_HW_ENABLE_RTC
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rtc_init_start(false);
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#endif
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uart_init0();
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spi_init0();
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#if MICROPY_HW_ENABLE_STORAGE
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storage_init();
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#endif
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#if defined(MICROPY_HW_UART_REPL)
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// Set up a UART REPL using a statically allocated object
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machine_uart_repl_obj.base.type = &machine_uart_type;
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machine_uart_repl_obj.uart_id = MICROPY_HW_UART_REPL;
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machine_uart_repl_obj.is_static = true;
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machine_uart_repl_obj.timeout = 0;
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machine_uart_repl_obj.timeout_char = 2;
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uart_init(&machine_uart_repl_obj, MICROPY_HW_UART_REPL_BAUD, UART_WORDLENGTH_8B, UART_PARITY_NONE, UART_STOPBITS_1, 0);
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uart_set_rxbuf(&machine_uart_repl_obj, sizeof(machine_uart_repl_rxbuf), machine_uart_repl_rxbuf);
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uart_attach_to_repl(&machine_uart_repl_obj, true);
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MP_STATE_PORT(machine_uart_obj_all)[MICROPY_HW_UART_REPL] = &machine_uart_repl_obj;
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#if RA_EARLY_PRINT
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MP_STATE_PORT(pyb_stdio_uart) = &machine_uart_repl_obj;
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#endif
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#endif
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boardctrl_state_t state;
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state.reset_mode = 1;
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state.log_soft_reset = false;
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#if MICROPY_HW_ENABLE_USBDEV
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tusb_init();
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#endif
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#if MICROPY_PY_BLUETOOTH
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mp_bluetooth_hci_init();
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#endif
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MICROPY_BOARD_BEFORE_SOFT_RESET_LOOP(&state);
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#if MICROPY_PY_LWIP
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// lwIP doesn't allow to reinitialise itself by subsequent calls to this function
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// because the system timeout list (next_timeout) is only ever reset by BSS clearing.
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// So for now we only init the lwIP stack once on power-up.
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lwip_init();
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#if LWIP_MDNS_RESPONDER
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mdns_resp_init();
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#endif
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#endif
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soft_reset:
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MICROPY_BOARD_TOP_SOFT_RESET_LOOP(&state);
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// Python threading init
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#if MICROPY_PY_THREAD
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mp_thread_init();
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#endif
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// Stack limit should be less than real stack size, so we have a chance
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// to recover from limit hit. (Limit is measured in bytes.)
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// Note: stack control relies on main thread being initialised above
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mp_stack_set_top(&_estack);
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mp_stack_set_limit((char *)&_estack - (char *)&_sstack - 1024);
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// GC init
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gc_init(MICROPY_HEAP_START, MICROPY_HEAP_END);
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#if MICROPY_ENABLE_PYSTACK
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static mp_obj_t pystack[384];
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mp_pystack_init(pystack, &pystack[384]);
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#endif
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// MicroPython init
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mp_init();
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// Initialise low-level sub-systems. Here we need to very basic things like
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// zeroing out memory and resetting any of the sub-systems. Following this
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// we can run Python scripts (eg boot.py), but anything that is configurable
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// by boot.py must be set after boot.py is run.
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#if defined(MICROPY_HW_UART_REPL)
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MP_STATE_PORT(pyb_stdio_uart) = &machine_uart_repl_obj;
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#else
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MP_STATE_PORT(pyb_stdio_uart) = NULL;
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#endif
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readline_init0();
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machine_pin_init();
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extint_init0();
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timer_init0();
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#if MICROPY_HW_ENABLE_I2S
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machine_i2s_init0();
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#endif
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#if MICROPY_PY_NETWORK
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mod_network_init();
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#endif
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#if MICROPY_PY_LWIP
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mod_network_lwip_init();
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#endif
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// Initialise the local flash filesystem.
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// Create it if needed, mount in on /flash, and set it as current dir.
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bool mounted_flash = false;
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#if MICROPY_HW_FLASH_MOUNT_AT_BOOT
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mounted_flash = init_flash_fs(state.reset_mode);
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#endif
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// set sys.path based on mounted filesystems
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if (mounted_flash) {
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash));
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash_slash_lib));
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}
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// reset config variables; they should be set by boot.py
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MP_STATE_PORT(pyb_config_main) = MP_OBJ_NULL;
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// Run optional frozen boot code.
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#ifdef MICROPY_BOARD_FROZEN_BOOT_FILE
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pyexec_frozen_module(MICROPY_BOARD_FROZEN_BOOT_FILE, false);
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#endif
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// Run boot.py (or whatever else a board configures at this stage).
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if (MICROPY_BOARD_RUN_BOOT_PY(&state) == BOARDCTRL_GOTO_SOFT_RESET_EXIT) {
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goto soft_reset_exit;
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}
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// Now we initialise sub-systems that need configuration from boot.py,
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// or whose initialisation can be safely deferred until after running
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// boot.py.
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// At this point everything is fully configured and initialised.
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// Run main.py (or whatever else a board configures at this stage).
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if (MICROPY_BOARD_RUN_MAIN_PY(&state) == BOARDCTRL_GOTO_SOFT_RESET_EXIT) {
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goto soft_reset_exit;
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}
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#if MICROPY_ENABLE_COMPILER
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// Main script is finished, so now go into REPL mode.
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// The REPL mode can change, or it can request a 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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#endif
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soft_reset_exit:
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// soft reset
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MICROPY_BOARD_START_SOFT_RESET(&state);
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#if MICROPY_HW_ENABLE_STORAGE
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if (state.log_soft_reset) {
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mp_printf(&mp_plat_print, "MPY: sync filesystems\n");
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}
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storage_flush();
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#endif
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if (state.log_soft_reset) {
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mp_printf(&mp_plat_print, "MPY: soft reboot\n");
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}
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#if MICROPY_PY_BLUETOOTH
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mp_bluetooth_deinit();
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#endif
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#if MICROPY_PY_NETWORK
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mod_network_deinit();
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#endif
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soft_timer_deinit();
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timer_deinit();
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uart_deinit_all();
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#if MICROPY_HW_ENABLE_DAC
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dac_deinit_all();
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#endif
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machine_pin_deinit();
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machine_deinit();
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#if MICROPY_PY_THREAD
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pyb_thread_deinit();
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#endif
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MICROPY_BOARD_END_SOFT_RESET(&state);
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gc_sweep_all();
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mp_deinit();
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goto soft_reset;
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}
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MP_REGISTER_ROOT_POINTER(mp_obj_t pyb_config_main);
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