djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
2b8a718d73
circuitpython/cc3200/mptask.c
danicampora 2c103d5200 cc3200: Rewrite the PRCM RTC functionality methods. 
This allows to use the On-Chip retention registers for both the
RTC and to share notification flags between the bootloader and the
application. The two flags being shared right now are the "safe boot"
request and the WDT reset cause. we still have 2 more bits free for
future use.
2015-03-14 10:08:47 +01:00

365 lines
11 KiB
C
Raw Blame History

/*
* 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 "py/mpconfig.h"
#include MICROPY_HAL_H
#include "py/obj.h"
#include "py/runtime.h"
#include "py/gc.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "rom_map.h"
#include "pin.h"
#include "prcm.h"
#include "pybuart.h"
#include "pybpin.h"
#include "pybrtc.h"
#include "pyexec.h"
#include "gccollect.h"
#include "gchelper.h"
#include "readline.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 "pybi2c.h"
#include "pybsd.h"
#include "pins.h"
#include "pybsleep.h"
#include "mpcallback.h"
/******************************************************************************
DECLARE PRIVATE CONSTANTS
******************************************************************************/
/******************************************************************************
DECLARE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void mptask_pre_init (void);
STATIC void mptask_init_sflash_filesystem (void);
STATIC void mptask_enter_ap_mode (void);
STATIC void mptask_create_main_py (void);
/******************************************************************************
DECLARE PUBLIC DATA
******************************************************************************/
#ifdef DEBUG
OsiTaskHandle svTaskHandle;
#endif
/******************************************************************************
DECLARE PRIVATE DATA
******************************************************************************/
static FATFS *sflash_fatfs;
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);
bool safeboot = false;
FRESULT res;
mptask_pre_init();
soft_reset:
// GC init
gc_init(&_boot, &_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)
// execute all basic initializations
mperror_init0();
mpexception_init0();
mpcallback_init0();
pybsleep_init0();
uart_init0();
pin_init0();
readline_init0();
mod_network_init0();
wlan_init0();
#if MICROPY_HW_ENABLE_RNG
rng_init0();
#endif
// configure stdio uart pins with the correct af
// param 3 ("mode") is DON'T CARE" for AFs others than GPIO
pin_config ((pin_obj_t *)&pin_GPIO1, PIN_MODE_3, 0, PIN_TYPE_STD, PIN_STRENGTH_2MA);
pin_config ((pin_obj_t *)&pin_GPIO2, PIN_MODE_3, 0, PIN_TYPE_STD, PIN_STRENGTH_2MA);
// Instantiate the stdio uart
mp_obj_t args[2] = {
mp_obj_new_int(MICROPY_STDIO_UART),
mp_obj_new_int(MICROPY_STDIO_UART_BAUD),
};
pyb_stdio_uart = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args);
mperror_enable_heartbeat();
if (MAP_PRCMSysResetCauseGet() != PRCM_HIB_EXIT) {
// only if not comming out of hibernate
mptask_enter_ap_mode();
// don't check for safeboot when comming out of hibernate
#ifndef DEBUG
safeboot = PRCMIsSafeBootRequested();
#endif
}
else {
// when waking up from hibernate we just want
// to enable simplelink and leave it as is
wlan_first_start();
}
// initialize the serial flash file system
mptask_init_sflash_filesystem();
// enable telnet and ftp servers
servers_enable();
// 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;
if (!safeboot) {
// 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) {
// flash the system led
mperror_signal_error();
}
}
}
// 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.
if (!safeboot) {
// 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) {
// flash the system led
mperror_signal_error();
}
}
}
}
// 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
pybsleep_signal_soft_reset();
sflash_disk_flush();
#if MICROPY_HW_HAS_SDCARD
pybsd_deinit();
#endif
printf("PYB: soft reboot\n");
// wait for all bus transfers to complete
HAL_Delay(50);
// disable wlan services
wlan_stop_servers();
wlan_stop();
uart_deinit();
goto soft_reset;
}
/******************************************************************************
DEFINE PRIVATE FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
STATIC void mptask_pre_init (void) {
#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);
// this one allocates memory for the nvic vault
pybsleep_pre_init();
#if MICROPY_HW_HAS_SDCARD
pybsd_init0();
#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
}
STATIC void mptask_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("failed to create /SFLASH");
}
// create empty main.py
mptask_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
mptask_create_main_py();
}
} else {
__fatal_error("failed to create /SFLASH");
}
// 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 mptask_enter_ap_mode (void) {
// Enable simplelink in low power mode
wlan_sl_enable (ROLE_AP, SERVERS_DEF_AP_SSID, strlen(SERVERS_DEF_AP_SSID), SERVERS_DEF_AP_SECURITY,
SERVERS_DEF_AP_KEY, strlen(SERVERS_DEF_AP_KEY), SERVERS_DEF_AP_CHANNEL);
}
STATIC void mptask_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);
Reference in New Issue View Git Blame Copy Permalink