0646e607b5
The stm32 and nrf ports already had the behaviour that they would first check if the script exists before executing it, and this patch makes all other ports work the same way. This helps when developing apps because it's hard to tell (when unconditionally trying to execute the scripts) if the resulting OSError at boot up comes from missing boot.py or main.py, or from some other error. And it's not really an error if these scripts don't exist.
397 lines
13 KiB
C
397 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, 2014 Damien P. George
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* Copyright (c) 2015 Daniel Campora
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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 <stdint.h>
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#include "py/mpconfig.h"
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#include "py/stackctrl.h"
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "py/gc.h"
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#include "py/mphal.h"
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#include "lib/mp-readline/readline.h"
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#include "lib/oofatfs/ff.h"
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#include "lib/oofatfs/diskio.h"
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#include "extmod/vfs.h"
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#include "extmod/vfs_fat.h"
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#include "inc/hw_memmap.h"
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#include "inc/hw_types.h"
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#include "inc/hw_ints.h"
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#include "inc/hw_memmap.h"
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#include "rom_map.h"
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#include "pin.h"
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#include "prcm.h"
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#include "interrupt.h"
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#include "pybuart.h"
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#include "pybpin.h"
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#include "pybrtc.h"
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#include "lib/utils/pyexec.h"
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#include "lib/utils/gchelper.h"
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#include "gccollect.h"
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#include "mperror.h"
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#include "simplelink.h"
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#include "modnetwork.h"
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#include "modusocket.h"
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#include "modwlan.h"
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#include "serverstask.h"
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#include "telnet.h"
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#include "debug.h"
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#include "sflash_diskio.h"
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#include "random.h"
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#include "pybi2c.h"
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#include "pins.h"
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#include "mods/pybflash.h"
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#include "pybsleep.h"
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#include "pybtimer.h"
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#include "cryptohash.h"
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#include "mpirq.h"
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#include "updater.h"
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#include "moduos.h"
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#include "antenna.h"
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#include "task.h"
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/******************************************************************************
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DECLARE PRIVATE CONSTANTS
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******************************************************************************/
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/******************************************************************************
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DECLARE PRIVATE FUNCTIONS
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******************************************************************************/
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STATIC void mptask_pre_init (void);
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STATIC void mptask_init_sflash_filesystem (void);
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STATIC void mptask_enter_ap_mode (void);
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STATIC void mptask_create_main_py (void);
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/******************************************************************************
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DECLARE PUBLIC DATA
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******************************************************************************/
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#ifdef DEBUG
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OsiTaskHandle svTaskHandle;
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#endif
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/******************************************************************************
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DECLARE PRIVATE DATA
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******************************************************************************/
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static fs_user_mount_t *sflash_vfs_fat;
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static const char fresh_main_py[] = "# main.py -- put your code here!\r\n";
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static const char fresh_boot_py[] = "# boot.py -- run on boot-up\r\n"
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"# can run arbitrary Python, but best to keep it minimal\r\n"
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#if MICROPY_STDIO_UART
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"import os, machine\r\n"
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"os.dupterm(machine.UART(0, " MP_STRINGIFY(MICROPY_STDIO_UART_BAUD) "))\r\n"
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#endif
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;
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/******************************************************************************
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DECLARE PUBLIC FUNCTIONS
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******************************************************************************/
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void TASK_MicroPython (void *pvParameters) {
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// get the top of the stack to initialize the garbage collector
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uint32_t sp = gc_helper_get_sp();
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bool safeboot = false;
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mptask_pre_init();
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#ifndef DEBUG
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safeboot = PRCMGetSpecialBit(PRCM_SAFE_BOOT_BIT);
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#endif
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soft_reset:
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// Thread 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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// initialise the stack pointer for the main thread (must be done after mp_thread_init)
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mp_stack_set_top((void*)sp);
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// GC init
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gc_init(&_boot, &_eheap);
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// MicroPython init
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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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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
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// execute all basic initializations
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mp_irq_init0();
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pyb_sleep_init0();
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pin_init0();
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mperror_init0();
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uart_init0();
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timer_init0();
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readline_init0();
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mod_network_init0();
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rng_init0();
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pybsleep_reset_cause_t rstcause = pyb_sleep_get_reset_cause();
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if (rstcause < PYB_SLP_SOFT_RESET) {
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if (rstcause == PYB_SLP_HIB_RESET) {
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// when waking up from hibernate we just want
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// to enable simplelink and leave it as is
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wlan_first_start();
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}
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else {
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// only if not comming out of hibernate or a soft reset
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mptask_enter_ap_mode();
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}
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// enable telnet and ftp
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servers_start();
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}
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// initialize the serial flash file system
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mptask_init_sflash_filesystem();
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// append the flash paths to the system path
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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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// reset config variables; they should be set by boot.py
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MP_STATE_PORT(machine_config_main) = MP_OBJ_NULL;
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if (!safeboot) {
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// run boot.py
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int ret = pyexec_file_if_exists("boot.py");
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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if (!ret) {
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// flash the system led
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mperror_signal_error();
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}
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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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if (!safeboot) {
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// run the main script from the current directory.
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if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
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const char *main_py;
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if (MP_STATE_PORT(machine_config_main) == MP_OBJ_NULL) {
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main_py = "main.py";
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} else {
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main_py = mp_obj_str_get_str(MP_STATE_PORT(machine_config_main));
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}
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int ret = pyexec_file_if_exists(main_py);
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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if (!ret) {
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// flash the system led
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mperror_signal_error();
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}
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}
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}
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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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soft_reset_exit:
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// soft reset
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pyb_sleep_signal_soft_reset();
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mp_printf(&mp_plat_print, "MPY: soft reboot\n");
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// disable all callbacks to avoid undefined behaviour
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// when coming out of a soft reset
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mp_irq_disable_all();
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// cancel the RTC alarm which might be running independent of the irq state
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pyb_rtc_disable_alarm();
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// flush the serial flash buffer
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sflash_disk_flush();
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// clean-up the user socket space
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modusocket_close_all_user_sockets();
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// unmount all user file systems
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osmount_unmount_all();
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// wait for pending transactions to complete
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mp_hal_delay_ms(20);
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goto soft_reset;
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}
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/******************************************************************************
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DEFINE PRIVATE FUNCTIONS
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******************************************************************************/
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__attribute__ ((section (".boot")))
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STATIC void mptask_pre_init (void) {
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// this one only makes sense after a poweron reset
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pyb_rtc_pre_init();
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// Create the simple link spawn task
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ASSERT (OSI_OK == VStartSimpleLinkSpawnTask(SIMPLELINK_SPAWN_TASK_PRIORITY));
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// Allocate memory for the flash file system
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ASSERT ((sflash_vfs_fat = mem_Malloc(sizeof(*sflash_vfs_fat))) != NULL);
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// this one allocates memory for the nvic vault
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pyb_sleep_pre_init();
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// this one allocates memory for the WLAN semaphore
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wlan_pre_init();
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// this one allocates memory for the updater semaphore
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updater_pre_init();
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// this one allocates memory for the socket semaphore
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modusocket_pre_init();
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//CRYPTOHASH_Init();
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#ifndef DEBUG
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OsiTaskHandle svTaskHandle;
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#endif
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svTaskHandle = xTaskCreateStatic(TASK_Servers, "Servers",
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SERVERS_STACK_LEN, NULL, SERVERS_PRIORITY, svTaskStack, &svTaskTCB);
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ASSERT(svTaskHandle != NULL);
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}
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STATIC void mptask_init_sflash_filesystem (void) {
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FILINFO fno;
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// Initialise the local flash filesystem.
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// init the vfs object
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fs_user_mount_t *vfs_fat = sflash_vfs_fat;
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vfs_fat->flags = 0;
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pyb_flash_init_vfs(vfs_fat);
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// Create it if needed, and mount in on /flash.
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FRESULT res = f_mount(&vfs_fat->fatfs);
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if (res == FR_NO_FILESYSTEM) {
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// no filesystem, so create a fresh one
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uint8_t working_buf[FF_MAX_SS];
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res = f_mkfs(&vfs_fat->fatfs, FM_FAT | FM_SFD, 0, working_buf, sizeof(working_buf));
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if (res == FR_OK) {
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// success creating fresh LFS
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} else {
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__fatal_error("failed to create /flash");
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}
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// create empty main.py
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mptask_create_main_py();
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} else if (res == FR_OK) {
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// mount sucessful
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if (FR_OK != f_stat(&vfs_fat->fatfs, "/main.py", &fno)) {
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// create empty main.py
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mptask_create_main_py();
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}
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} else {
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fail:
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__fatal_error("failed to create /flash");
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}
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// mount the flash device (there should be no other devices mounted at this point)
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// we allocate this structure on the heap because vfs->next is a root pointer
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mp_vfs_mount_t *vfs = m_new_obj_maybe(mp_vfs_mount_t);
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if (vfs == NULL) {
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goto fail;
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}
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vfs->str = "/flash";
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vfs->len = 6;
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vfs->obj = MP_OBJ_FROM_PTR(vfs_fat);
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vfs->next = NULL;
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MP_STATE_VM(vfs_mount_table) = vfs;
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// The current directory is used as the boot up directory.
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// It is set to the internal flash filesystem by default.
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MP_STATE_PORT(vfs_cur) = vfs;
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// create /flash/sys, /flash/lib and /flash/cert if they don't exist
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if (FR_OK != f_chdir(&vfs_fat->fatfs, "/sys")) {
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f_mkdir(&vfs_fat->fatfs, "/sys");
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}
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if (FR_OK != f_chdir(&vfs_fat->fatfs, "/lib")) {
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f_mkdir(&vfs_fat->fatfs, "/lib");
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}
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if (FR_OK != f_chdir(&vfs_fat->fatfs, "/cert")) {
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f_mkdir(&vfs_fat->fatfs, "/cert");
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}
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f_chdir(&vfs_fat->fatfs, "/");
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// make sure we have a /flash/boot.py. Create it if needed.
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res = f_stat(&vfs_fat->fatfs, "/boot.py", &fno);
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if (res == FR_OK) {
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if (fno.fattrib & AM_DIR) {
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// exists as a directory
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// TODO handle this case
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// see http://elm-chan.org/fsw/ff/img/app2.c for a "rm -rf" implementation
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} else {
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// exists as a file, good!
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}
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} else {
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// doesn't exist, create fresh file
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FIL fp;
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f_open(&vfs_fat->fatfs, &fp, "/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
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UINT n;
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f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py) - 1 /* don't count null terminator */, &n);
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// TODO check we could write n bytes
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f_close(&fp);
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}
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}
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STATIC void mptask_enter_ap_mode (void) {
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// append the mac only if it's not the first boot
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bool add_mac = !PRCMGetSpecialBit(PRCM_FIRST_BOOT_BIT);
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// enable simplelink in ap mode (use the MAC address to make the ssid unique)
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wlan_sl_init (ROLE_AP, MICROPY_PORT_WLAN_AP_SSID, strlen(MICROPY_PORT_WLAN_AP_SSID),
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MICROPY_PORT_WLAN_AP_SECURITY, MICROPY_PORT_WLAN_AP_KEY, strlen(MICROPY_PORT_WLAN_AP_KEY),
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MICROPY_PORT_WLAN_AP_CHANNEL, ANTENNA_TYPE_INTERNAL, add_mac);
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}
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STATIC void mptask_create_main_py (void) {
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// create empty main.py
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FIL fp;
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f_open(&sflash_vfs_fat->fatfs, &fp, "/main.py", FA_WRITE | FA_CREATE_ALWAYS);
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UINT n;
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f_write(&fp, fresh_main_py, sizeof(fresh_main_py) - 1 /* don't count null terminator */, &n);
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f_close(&fp);
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}
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