6e153d9948
This makes all the following work: * normal microcontroller.reset() * reset into safe mode or UF2 bootloader via microcontroller.on_next_reset() * reset into UF2 bootloader via the "1200 baud trick" The implementation of reset_cpu is from micropython.
181 lines
6.2 KiB
C
181 lines
6.2 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) 2021 Scott Shawcroft for Adafruit Industries
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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 "py/mphal.h"
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "common-hal/microcontroller/__init__.h"
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#if CIRCUITPY_NVM
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#include "shared-bindings/nvm/ByteArray.h"
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#endif
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#include "shared-bindings/microcontroller/__init__.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/microcontroller/Processor.h"
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#include "supervisor/filesystem.h"
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#include "supervisor/port.h"
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#include "supervisor/shared/safe_mode.h"
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#include "supervisor/shared/translate.h"
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#include "src/rp2040/hardware_structs/include/hardware/structs/sio.h"
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#include "src/rp2_common/hardware_sync/include/hardware/sync.h"
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#include "hardware/watchdog.h"
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void common_hal_mcu_delay_us(uint32_t delay) {
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mp_hal_delay_us(delay);
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}
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volatile uint32_t nesting_count = 0;
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void common_hal_mcu_disable_interrupts(void) {
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// We don't use save_and_disable_interrupts() from the sdk because we don't want to worry about PRIMASK.
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// This is what we do on the SAMD21 via CMSIS.
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asm volatile ("cpsid i" : : : "memory");
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__dmb();
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nesting_count++;
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}
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void common_hal_mcu_enable_interrupts(void) {
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if (nesting_count == 0) {
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// reset_into_safe_mode(LOCKING_ERROR);
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}
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nesting_count--;
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if (nesting_count > 0) {
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return;
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}
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__dmb();
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asm volatile ("cpsie i" : : : "memory");
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}
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static bool next_reset_to_bootloader = false;
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void common_hal_mcu_on_next_reset(mcu_runmode_t runmode) {
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if (runmode == RUNMODE_BOOTLOADER) {
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next_reset_to_bootloader = true;
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} else {
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}
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if (runmode == RUNMODE_SAFE_MODE) {
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safe_mode_on_next_reset(PROGRAMMATIC_SAFE_MODE);
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}
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}
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void common_hal_mcu_reset(void) {
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filesystem_flush();
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if (next_reset_to_bootloader) {
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reset_to_bootloader();
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} else {
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reset_cpu();
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}
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}
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// The singleton microcontroller.Processor object, bound to microcontroller.cpu
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// It currently only has properties, and no state.
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#if CIRCUITPY_PROCESSOR_COUNT > 1
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static const mcu_processor_obj_t processor0 = {
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.base = {
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.type = &mcu_processor_type,
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},
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};
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static const mcu_processor_obj_t processor1 = {
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.base = {
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.type = &mcu_processor_type,
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},
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};
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const mp_rom_obj_tuple_t common_hal_multi_processor_obj = {
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{&mp_type_tuple},
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CIRCUITPY_PROCESSOR_COUNT,
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{
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MP_ROM_PTR(&processor0),
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MP_ROM_PTR(&processor1)
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}
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};
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#endif
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const mcu_processor_obj_t common_hal_mcu_processor_obj = {
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.base = {
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.type = &mcu_processor_type,
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},
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};
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#if CIRCUITPY_NVM && CIRCUITPY_INTERNAL_NVM_SIZE > 0
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// The singleton nvm.ByteArray object.
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const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = {
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.base = {
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.type = &nvm_bytearray_type,
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},
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.len = CIRCUITPY_INTERNAL_NVM_SIZE,
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.start_address = (uint8_t*) (CIRCUITPY_INTERNAL_NVM_START_ADDR)
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};
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#endif
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#if CIRCUITPY_WATCHDOG
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// The singleton watchdog.WatchDogTimer object.
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watchdog_watchdogtimer_obj_t common_hal_mcu_watchdogtimer_obj = {
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.base = {
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.type = &watchdog_watchdogtimer_type,
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},
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.timeout = 0.0f,
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.mode = WATCHDOGMODE_NONE,
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};
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#endif
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// This maps MCU pin names to pin objects.
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const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT] = {
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{ MP_ROM_QSTR(MP_QSTR_GPIO0), MP_ROM_PTR(&pin_GPIO0) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO1), MP_ROM_PTR(&pin_GPIO1) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO2), MP_ROM_PTR(&pin_GPIO2) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO3), MP_ROM_PTR(&pin_GPIO3) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO4), MP_ROM_PTR(&pin_GPIO4) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO5), MP_ROM_PTR(&pin_GPIO5) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO6), MP_ROM_PTR(&pin_GPIO6) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO7), MP_ROM_PTR(&pin_GPIO7) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO8), MP_ROM_PTR(&pin_GPIO8) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO9), MP_ROM_PTR(&pin_GPIO9) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO10), MP_ROM_PTR(&pin_GPIO10) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO11), MP_ROM_PTR(&pin_GPIO11) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO12), MP_ROM_PTR(&pin_GPIO12) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO13), MP_ROM_PTR(&pin_GPIO13) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO14), MP_ROM_PTR(&pin_GPIO14) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO15), MP_ROM_PTR(&pin_GPIO15) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO16), MP_ROM_PTR(&pin_GPIO16) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO17), MP_ROM_PTR(&pin_GPIO17) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO18), MP_ROM_PTR(&pin_GPIO18) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO19), MP_ROM_PTR(&pin_GPIO19) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO20), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO21), MP_ROM_PTR(&pin_GPIO21) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO22), MP_ROM_PTR(&pin_GPIO22) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO23), MP_ROM_PTR(&pin_GPIO23) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO24), MP_ROM_PTR(&pin_GPIO24) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO25), MP_ROM_PTR(&pin_GPIO25) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO26), MP_ROM_PTR(&pin_GPIO26) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO27), MP_ROM_PTR(&pin_GPIO27) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO28), MP_ROM_PTR(&pin_GPIO28) },
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{ MP_ROM_QSTR(MP_QSTR_GPIO29), MP_ROM_PTR(&pin_GPIO29) },
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};
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MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_global_dict_table);
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