micropython/cc3200/mptask.c

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2015 Daniel Campora
*
* 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 <std.h>
#include "mpconfig.h"
#include MICROPY_HAL_H
#include "nlr.h"
#include "misc.h"
#include "qstr.h"
#include "lexer.h"
#include "parse.h"
#include "obj.h"
#include "compile.h"
#include "runtime0.h"
#include "runtime.h"
#include "repl.h"
#include "inc/hw_memmap.h"
#include "pybuart.h"
#include "pybpin.h"
#include "pybrtc.h"
#include "pyexec.h"
#include "gccollect.h"
#include "gchelper.h"
#include "readline.h"
#include "gc.h"
#include "osi.h"
#include "mptask.h"
#include "mperror.h"
#include "simplelink.h"
#include "modnetwork.h"
#include "modwlan.h"
#include "serverstask.h"
#include "telnet.h"
#include "debug.h"
#include "ff.h"
#include "diskio.h"
#include "sflash_diskio.h"
#include "mpexception.h"
#include "random.h"
#include "pybextint.h"
/******************************************************************************
DECLARE PRIVATE CONSTANTS
******************************************************************************/
/******************************************************************************
DECLARE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void main_init_sflash_filesystem (void);
STATIC void main_enter_ap_mode (void);
STATIC void main_create_main_py (void);
/******************************************************************************
DECLARE PUBLIC DATA
******************************************************************************/
#ifdef DEBUG
OsiTaskHandle svTaskHandle;
#endif
/******************************************************************************
DECLARE PRIVATE DATA
******************************************************************************/
static FATFS *sflash_fatfs;
#if MICROPY_HW_HAS_SDCARD
static FATFS *sd_fatfs;
#endif
static const char fresh_main_py[] = "# main.py -- put your code here!\r\n";
static const char fresh_boot_py[] = "# boot.py -- run on boot-up\r\n"
"# can run arbitrary Python, but best to keep it minimal\r\n";
/******************************************************************************
DECLARE PUBLIC FUNCTIONS
******************************************************************************/
void TASK_Micropython (void *pvParameters) {
// Initialize the garbage collector with the top of our stack
uint32_t sp = gc_helper_get_sp();
gc_collect_init (sp);
FRESULT res;
#if MICROPY_HW_ENABLE_RTC
pybrtc_init();
#endif
// Create the simple link spawn task
ASSERT (OSI_OK == VStartSimpleLinkSpawnTask(SIMPLELINK_SPAWN_TASK_PRIORITY));
// Allocate memory for the flash file system
ASSERT ((sflash_fatfs = mem_Malloc(sizeof(FATFS))) != NULL);
#if MICROPY_HW_HAS_SDCARD
// Allocate memory for the sd file system
ASSERT ((sd_fatfs = mem_Malloc(sizeof(FATFS))) != NULL);
#endif
#ifdef DEBUG
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, &svTaskHandle));
#else
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, NULL));
#endif
soft_reset:
// GC init
gc_init(&_heap, &_eheap);
// Micro Python init
mp_init();
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_init(mp_sys_argv, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
mpexception_init0();
uart_init0();
// Instantiate the stdio uart
mp_obj_t args[2] = {
mp_obj_new_int(MICROPY_STDIO_UART),
mp_obj_new_int(MICROPY_STDIO_UART_BAUD),
};
MP_STATE_PORT(pyb_stdio_uart) = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args);
readline_init0();
pin_init0();
extint_init0();
mod_network_init();
wlan_init0();
#if MICROPY_HW_ENABLE_RNG
rng_init0();
#endif
main_enter_ap_mode();
// enable telnet and ftp servers
servers_enable();
// initialize the serial flash file system
main_init_sflash_filesystem();
#if MICROPY_HW_HAS_SDCARD
// try to mount the sd card on /SD
res = f_mount(sd_fatfs, "/SD", 1);
if (res == FR_OK) {
// use the SD card as the current directory
f_chdrive("/SD");
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_SD));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_SD_slash_LIB));
}
#endif
// append the SFLASH paths to the system path
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_SFLASH));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_SFLASH_slash_LIB));
// reset config variables; they should be set by boot.py
MP_STATE_PORT(pyb_config_main) = MP_OBJ_NULL;
// run boot.py, if it exists
const char *boot_py = "BOOT.PY";
res = f_stat(boot_py, NULL);
if (res == FR_OK) {
int ret = pyexec_file(boot_py);
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
if (!ret) {
// TODO: Flash some LEDs
}
}
// Now we initialise sub-systems that need configuration from boot.py,
// or whose initialisation can be safely deferred until after running
// boot.py.
// At this point everything is fully configured and initialised.
// Run the main script from the current directory.
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
const char *main_py;
if (MP_STATE_PORT(pyb_config_main) == MP_OBJ_NULL) {
main_py = "MAIN.PY";
} else {
main_py = mp_obj_str_get_str(MP_STATE_PORT(pyb_config_main));
}
res = f_stat(main_py, NULL);
if (res == FR_OK) {
int ret = pyexec_file(main_py);
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
if (!ret) {
// TODO: Flash some LEDs
}
}
}
// Main script is finished, so now go into REPL mode.
// The REPL mode can change, or it can request a soft reset.
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:
// soft reset
sflash_disk_flush();
printf("PYB: soft rebooting...\n");
// Disable wlan services
wlan_servers_stop();
wlan_sl_disable();
// Wait for all bus transfers to complete
HAL_Delay(50);
uart_deinit();
goto soft_reset;
}
/******************************************************************************
DEFINE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void main_init_sflash_filesystem (void) {
// Initialise the local flash filesystem.
// Create it if needed, and mount in on /sflash.
// try to mount the flash
FRESULT res = f_mount(sflash_fatfs, "/SFLASH", 1);
if (res == FR_NO_FILESYSTEM) {
// no filesystem, so create a fresh one
res = f_mkfs("/SFLASH", 1, 0);
if (res == FR_OK) {
// success creating fresh LFS
} else {
__fatal_error("could not create /SFLASH file system");
}
// create empty main.py
main_create_main_py();
} else if (res == FR_OK) {
// mount sucessful
FILINFO fno;
if (FR_OK != f_stat("/SFLASH/MAIN.PY", &fno)) {
// create empty main.py
main_create_main_py();
}
} else {
__fatal_error("could not create /SFLASH file system");
}
// The current directory is used as the boot up directory.
// It is set to the internal flash filesystem by default.
f_chdrive("/SFLASH");
// Make sure we have a /flash/boot.py. Create it if needed.
FILINFO fno;
res = f_stat("/SFLASH/BOOT.PY", &fno);
if (res == FR_OK) {
if (fno.fattrib & AM_DIR) {
// exists as a directory
// TODO handle this case
// see http://elm-chan.org/fsw/ff/img/app2.c for a "rm -rf" implementation
} else {
// exists as a file, good!
}
} else {
// doesn't exist, create fresh file
FIL fp;
f_open(&fp, "/SFLASH/BOOT.PY", FA_WRITE | FA_CREATE_ALWAYS);
UINT n;
f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py) - 1 /* don't count null terminator */, &n);
// TODO check we could write n bytes
f_close(&fp);
}
}
STATIC void main_enter_ap_mode (void) {
// Enable simplelink in low power mode
wlan_sl_enable (ROLE_AP, SERVERS_DEF_AP_SSID, strlen(SERVERS_DEF_AP_SSID), SL_SEC_TYPE_WPA_WPA2,
SERVERS_DEF_AP_KEY, strlen(SERVERS_DEF_AP_KEY), SERVERS_DEF_AP_CHANNEL);
wlan_set_pm_policy (SL_NORMAL_POLICY);
}
STATIC void main_create_main_py (void) {
// create empty main.py
FIL fp;
f_open(&fp, "/SFLASH/MAIN.PY", FA_WRITE | FA_CREATE_ALWAYS);
UINT n;
f_write(&fp, fresh_main_py, sizeof(fresh_main_py) - 1 /* don't count null terminator */, &n);
f_close(&fp);
}
STATIC mp_obj_t pyb_main(mp_obj_t main) {
if (MP_OBJ_IS_STR(main)) {
MP_STATE_PORT(pyb_config_main) = main;
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(pyb_main_obj, pyb_main);