2c103d5200
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.
304 lines
11 KiB
C
304 lines
11 KiB
C
/*
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* This file is part of the Micro Python 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 <std.h>
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#include <stdint.h>
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#include "py/mpstate.h"
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#include "py/runtime.h"
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#include MICROPY_HAL_H
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#include "irq.h"
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#include "inc/hw_types.h"
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#include "inc/hw_gpio.h"
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#include "inc/hw_ints.h"
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#include "inc/hw_memmap.h"
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#include "inc/hw_uart.h"
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#include "prcm.h"
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#include "pyexec.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 "pybsystick.h"
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#include "simplelink.h"
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#include "modwlan.h"
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#include "moduos.h"
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#include "telnet.h"
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#include "ff.h"
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#include "diskio.h"
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#include "sflash_diskio.h"
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#include "FreeRTOS.h"
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#include "portable.h"
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#include "task.h"
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#include "mpexception.h"
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#include "mpcallback.h"
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#include "random.h"
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#include "pybadc.h"
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#include "pybi2c.h"
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#include "pybsd.h"
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#include "pybwdt.h"
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#include "pybsleep.h"
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#include "utils.h"
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#include "gccollect.h"
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#include "mperror.h"
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#ifdef DEBUG
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extern OsiTaskHandle mpTaskHandle;
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extern OsiTaskHandle svTaskHandle;
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extern OsiTaskHandle xSimpleLinkSpawnTaskHndl;
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#endif
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/// \module pyb - functions related to the pyboard
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///
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/// The `pyb` module contains specific functions related to the pyboard.
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/// \function hard_reset()
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/// Resets the pyboard in a manner similar to pushing the external RESET
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/// button.
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STATIC mp_obj_t pyb_hard_reset(void) {
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#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
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// disable wlan services
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wlan_stop_servers();
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#endif
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wlan_stop();
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// perform a SoC reset
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PRCMSOCReset();
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_hard_reset_obj, pyb_hard_reset);
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#ifdef DEBUG
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/// \function info([dump_alloc_table])
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/// Print out some run time info which is helpful duirng development.
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STATIC mp_obj_t pyb_info(uint n_args, const mp_obj_t *args) {
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// FreeRTOS info
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{
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printf("---------------------------------------------\n");
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printf("FreeRTOS\n");
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printf("---------------------------------------------\n");
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printf("Total heap: %u\n", configTOTAL_HEAP_SIZE);
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printf("Free heap: %u\n", xPortGetFreeHeapSize());
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printf("MpTask min free stack: %u\n", (unsigned int)uxTaskGetStackHighWaterMark((TaskHandle_t)mpTaskHandle));
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printf("ServersTask min free stack: %u\n", (unsigned int)uxTaskGetStackHighWaterMark((TaskHandle_t)svTaskHandle));
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printf("SlTask min free stack: %u\n", (unsigned int)uxTaskGetStackHighWaterMark(xSimpleLinkSpawnTaskHndl));
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printf("IdleTask min free stack: %u\n", (unsigned int)uxTaskGetStackHighWaterMark(xTaskGetIdleTaskHandle()));
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uint32_t *pstack = (uint32_t *)&_stack;
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while (*pstack == 0x55555555) {
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pstack++;
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}
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printf("MAIN min free stack: %u\n", pstack - ((uint32_t *)&_stack));
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printf("---------------------------------------------\n");
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_info_obj, 0, 1, pyb_info);
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#endif
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/// \function freq()
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/// Returns the CPU frequency: (F_CPU).
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STATIC mp_obj_t pyb_freq(void) {
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return mp_obj_new_int(HAL_FCPU_HZ);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_freq_obj, pyb_freq);
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/// \function millis()
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/// Returns the number of milliseconds since the board was last reset.
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///
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/// The result is always a micropython smallint (31-bit signed number), so
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/// after 2^30 milliseconds (about 12.4 days) this will start to return
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/// negative numbers.
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STATIC mp_obj_t pyb_millis(void) {
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// We want to "cast" the 32 bit unsigned into a small-int. This means
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// copying the MSB down 1 bit (extending the sign down), which is
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// equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
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return MP_OBJ_NEW_SMALL_INT(HAL_GetTick());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_millis_obj, pyb_millis);
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/// \function elapsed_millis(start)
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/// Returns the number of milliseconds which have elapsed since `start`.
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///
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/// This function takes care of counter wrap, and always returns a positive
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/// number. This means it can be used to measure periods upto about 12.4 days.
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///
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/// Example:
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/// start = pyb.millis()
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/// while pyb.elapsed_millis(start) < 1000:
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/// # Perform some operation
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STATIC mp_obj_t pyb_elapsed_millis(mp_obj_t start) {
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uint32_t startMillis = mp_obj_get_int(start);
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uint32_t currMillis = HAL_GetTick();
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return MP_OBJ_NEW_SMALL_INT((currMillis - startMillis) & 0x3fffffff);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_elapsed_millis_obj, pyb_elapsed_millis);
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/// \function micros()
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/// Returns the number of microseconds since the board was last reset.
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///
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/// The result is always a micropython smallint (31-bit signed number), so
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/// after 2^30 microseconds (about 17.8 minutes) this will start to return
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/// negative numbers.
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STATIC mp_obj_t pyb_micros(void) {
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// We want to "cast" the 32 bit unsigned into a small-int. This means
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// copying the MSB down 1 bit (extending the sign down), which is
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// equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
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return MP_OBJ_NEW_SMALL_INT(sys_tick_get_microseconds());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_micros_obj, pyb_micros);
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/// \function elapsed_micros(start)
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/// Returns the number of microseconds which have elapsed since `start`.
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///
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/// This function takes care of counter wrap, and always returns a positive
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/// number. This means it can be used to measure periods upto about 17.8 minutes.
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///
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/// Example:
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/// start = pyb.micros()
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/// while pyb.elapsed_micros(start) < 1000:
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/// # Perform some operation
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STATIC mp_obj_t pyb_elapsed_micros(mp_obj_t start) {
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uint32_t startMicros = mp_obj_get_int(start);
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uint32_t currMicros = sys_tick_get_microseconds();
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return MP_OBJ_NEW_SMALL_INT((currMicros - startMicros) & 0x3fffffff);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_elapsed_micros_obj, pyb_elapsed_micros);
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/// \function delay(ms)
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/// Delay for the given number of milliseconds.
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STATIC mp_obj_t pyb_delay(mp_obj_t ms_in) {
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mp_int_t ms = mp_obj_get_int(ms_in);
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if (ms > 0) {
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HAL_Delay(ms);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_delay_obj, pyb_delay);
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/// \function udelay(us)
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/// Delay for the given number of microseconds.
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STATIC mp_obj_t pyb_udelay(mp_obj_t usec_in) {
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mp_int_t usec = mp_obj_get_int(usec_in);
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if (usec > 0) {
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UtilsDelay(UTILS_DELAY_US_TO_COUNT(usec));
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_udelay_obj, pyb_udelay);
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/// \function repl_uart(uart)
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/// Get or set the UART object that the REPL is repeated on.
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STATIC mp_obj_t pyb_repl_uart(uint n_args, const mp_obj_t *args) {
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if (n_args == 0) {
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if (pyb_stdio_uart == NULL) {
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return mp_const_none;
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} else {
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return pyb_stdio_uart;
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}
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} else {
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if (args[0] == mp_const_none) {
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pyb_stdio_uart = NULL;
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} else if (mp_obj_get_type(args[0]) == &pyb_uart_type) {
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pyb_stdio_uart = args[0];
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} else {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments));
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}
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_repl_uart_obj, 0, 1, pyb_repl_uart);
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/// \function mkdisk('path')
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/// Formats the selected drive, useful when the filesystem has been damaged beyond repair
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STATIC mp_obj_t pyb_mkdisk(mp_obj_t path_o) {
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const char *path = mp_obj_str_get_str(path_o);
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if (FR_OK != f_mkfs(path, 1, 0)) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_mkdisk_obj, pyb_mkdisk);
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MP_DECLARE_CONST_FUN_OBJ(pyb_main_obj); // defined in main.c
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STATIC const mp_map_elem_t pyb_module_globals_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_reset), (mp_obj_t)&pyb_hard_reset_obj },
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#ifdef DEBUG
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{ MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&pyb_info_obj },
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#endif
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{ MP_OBJ_NEW_QSTR(MP_QSTR_freq), (mp_obj_t)&pyb_freq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_repl_info), (mp_obj_t)&pyb_set_repl_info_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_repl_uart), (mp_obj_t)&pyb_repl_uart_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_disable_irq), (mp_obj_t)&pyb_disable_irq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_enable_irq), (mp_obj_t)&pyb_enable_irq_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_main), (mp_obj_t)&pyb_main_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_millis), (mp_obj_t)&pyb_millis_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_millis), (mp_obj_t)&pyb_elapsed_millis_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_micros), (mp_obj_t)&pyb_micros_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_micros), (mp_obj_t)&pyb_elapsed_micros_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_delay), (mp_obj_t)&pyb_delay_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_udelay), (mp_obj_t)&pyb_udelay_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&os_sync_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_mkdisk), (mp_obj_t)&pyb_mkdisk_obj },
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#if MICROPY_HW_ENABLE_RNG
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{ MP_OBJ_NEW_QSTR(MP_QSTR_rng), (mp_obj_t)&pyb_rng_get_obj },
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#endif
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#if MICROPY_HW_ENABLE_RTC
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{ MP_OBJ_NEW_QSTR(MP_QSTR_RTC), (mp_obj_t)&pyb_rtc_obj },
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#endif
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Pin), (mp_obj_t)&pin_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ADC), (mp_obj_t)&pyb_adc_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_I2C), (mp_obj_t)&pyb_i2c_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_UART), (mp_obj_t)&pyb_uart_type },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_WDT), (mp_obj_t)&pyb_wdt_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_Sleep), (mp_obj_t)&pyb_sleep_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_HeartBeat), (mp_obj_t)&pyb_heartbeat_obj },
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#if MICROPY_HW_HAS_SDCARD
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sd_type },
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#endif
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};
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STATIC MP_DEFINE_CONST_DICT(pyb_module_globals, pyb_module_globals_table);
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const mp_obj_module_t pyb_module = {
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.base = { &mp_type_module },
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.name = MP_QSTR_pyb,
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.globals = (mp_obj_dict_t*)&pyb_module_globals,
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};
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