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circuitpython/cc3200/mptask.c
danicampora 53716fcc3e cc3200: Rename GPIO module to Pin. 
This change helps making the cc3200 port API a bit closer to stmhal.
The ramaining differences are due to the specific hardware details
of each chip. One feature that has been deliberately disabled is the
possibility to add custom names and custom pin mappings. Those
features are nice and convenient, but in this port, code size is a
major concern.
2015-02-09 20:01:54 +01:00

341 lines
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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 "pybstdio.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);
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