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main.c
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main.c
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2016-2017 Linaro Limited
* Copyright (c) 2020 NXP
*
* 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 <stdint.h>
#include <stdio.h>
#include <string.h>
#include <zephyr/zephyr.h>
#ifdef CONFIG_NETWORKING
#include <zephyr/net/net_context.h>
#endif
#ifdef CONFIG_USB_DEVICE_STACK
#include <zephyr/usb/usb_device.h>
#endif
#include <zephyr/storage/flash_map.h>
#include "py/mperrno.h"
#include "py/builtin.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/repl.h"
#include "py/gc.h"
#include "py/mphal.h"
#include "py/stackctrl.h"
#include "shared/runtime/pyexec.h"
#include "shared/readline/readline.h"
#include "extmod/modbluetooth.h"
#if MICROPY_VFS
#include "extmod/vfs.h"
#endif
#include "modmachine.h"
#include "modzephyr.h"
#ifdef TEST
#include "shared/upytesthelper/upytesthelper.h"
#include "lib/tinytest/tinytest.c"
#include "shared/upytesthelper/upytesthelper.c"
#include TEST
#endif
static char heap[MICROPY_HEAP_SIZE];
void init_zephyr(void) {
// We now rely on CONFIG_NET_APP_SETTINGS to set up bootstrap
// network addresses.
#if 0
#ifdef CONFIG_NETWORKING
if (net_if_get_default() == NULL) {
// If there's no default networking interface,
// there's nothing to configure.
return;
}
#endif
#ifdef CONFIG_NET_IPV4
static struct in_addr in4addr_my = {{{192, 0, 2, 1}}};
net_if_ipv4_addr_add(net_if_get_default(), &in4addr_my, NET_ADDR_MANUAL, 0);
static struct in_addr in4netmask_my = {{{255, 255, 255, 0}}};
net_if_ipv4_set_netmask(net_if_get_default(), &in4netmask_my);
static struct in_addr in4gw_my = {{{192, 0, 2, 2}}};
net_if_ipv4_set_gw(net_if_get_default(), &in4gw_my);
#endif
#ifdef CONFIG_NET_IPV6
// 2001:db8::1
static struct in6_addr in6addr_my = {{{0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}}};
net_if_ipv6_addr_add(net_if_get_default(), &in6addr_my, NET_ADDR_MANUAL, 0);
#endif
#endif
}
#if MICROPY_VFS
STATIC void vfs_init(void) {
mp_obj_t bdev = NULL;
mp_obj_t mount_point;
const char *mount_point_str = NULL;
int ret = 0;
#ifdef CONFIG_DISK_DRIVER_SDMMC
mp_obj_t args[] = { mp_obj_new_str(CONFIG_SDMMC_VOLUME_NAME, strlen(CONFIG_SDMMC_VOLUME_NAME)) };
bdev = MP_OBJ_TYPE_GET_SLOT(&zephyr_disk_access_type, make_new)(&zephyr_disk_access_type, ARRAY_SIZE(args), 0, args);
mount_point_str = "/sd";
#elif defined(CONFIG_FLASH_MAP) && FLASH_AREA_LABEL_EXISTS(storage)
mp_obj_t args[] = { MP_OBJ_NEW_SMALL_INT(FLASH_AREA_ID(storage)), MP_OBJ_NEW_SMALL_INT(4096) };
bdev = MP_OBJ_TYPE_GET_SLOT(&zephyr_flash_area_type, make_new)(&zephyr_flash_area_type, ARRAY_SIZE(args), 0, args);
mount_point_str = "/flash";
#endif
if ((bdev != NULL)) {
mount_point = mp_obj_new_str(mount_point_str, strlen(mount_point_str));
ret = mp_vfs_mount_and_chdir_protected(bdev, mount_point);
// TODO: if this failed, make a new file system and try to mount again
}
}
#endif // MICROPY_VFS
int real_main(void) {
mp_stack_ctrl_init();
// Make MicroPython's stack limit somewhat smaller than full stack available
mp_stack_set_limit(CONFIG_MAIN_STACK_SIZE - 512);
init_zephyr();
mp_hal_init();
#ifdef TEST
static const char *argv[] = {"test"};
upytest_set_heap(heap, heap + sizeof(heap));
int r = tinytest_main(1, argv, groups);
printf("status: %d\n", r);
#endif
soft_reset:
#if MICROPY_ENABLE_GC
gc_init(heap, heap + sizeof(heap));
#endif
mp_init();
#ifdef CONFIG_USB_DEVICE_STACK
usb_enable(NULL);
#endif
#if MICROPY_VFS
vfs_init();
#endif
#if MICROPY_MODULE_FROZEN || MICROPY_VFS
pyexec_file_if_exists("main.py");
#endif
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
printf("soft reboot\n");
#if MICROPY_PY_BLUETOOTH
mp_bluetooth_deinit();
#endif
#if MICROPY_PY_MACHINE
machine_pin_deinit();
#endif
goto soft_reset;
return 0;
}
void gc_collect(void) {
// WARNING: This gc_collect implementation doesn't try to get root
// pointers from CPU registers, and thus may function incorrectly.
void *dummy;
gc_collect_start();
gc_collect_root(&dummy, ((mp_uint_t)MP_STATE_THREAD(stack_top) - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
gc_collect_end();
}
#if !MICROPY_READER_VFS
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
mp_raise_OSError(ENOENT);
}
#endif
#if !MICROPY_VFS
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
#endif
NORETURN void nlr_jump_fail(void *val) {
while (1) {
;
}
}
#ifndef NDEBUG
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
__fatal_error("Assertion failed");
}
#endif