diff options
Diffstat (limited to 'circuitpython/ports/raspberrypi/common-hal/microcontroller/__init__.c')
| -rw-r--r-- | circuitpython/ports/raspberrypi/common-hal/microcontroller/__init__.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/circuitpython/ports/raspberrypi/common-hal/microcontroller/__init__.c b/circuitpython/ports/raspberrypi/common-hal/microcontroller/__init__.c new file mode 100644 index 0000000..ed68835 --- /dev/null +++ b/circuitpython/ports/raspberrypi/common-hal/microcontroller/__init__.c @@ -0,0 +1,184 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries + * + * 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 "py/mphal.h" +#include "py/obj.h" +#include "py/runtime.h" + +#include "common-hal/microcontroller/__init__.h" +#if CIRCUITPY_NVM +#include "shared-bindings/nvm/ByteArray.h" +#endif +#include "shared-bindings/microcontroller/__init__.h" +#include "shared-bindings/microcontroller/Pin.h" +#include "shared-bindings/microcontroller/Processor.h" +#include "supervisor/filesystem.h" +#include "supervisor/port.h" +#include "supervisor/shared/safe_mode.h" +#include "supervisor/shared/translate.h" + +#include "src/rp2040/hardware_structs/include/hardware/structs/sio.h" +#include "src/rp2_common/hardware_sync/include/hardware/sync.h" + +#include "hardware/watchdog.h" + +void common_hal_mcu_delay_us(uint32_t delay) { + mp_hal_delay_us(delay); +} + +volatile uint32_t nesting_count = 0; +void common_hal_mcu_disable_interrupts(void) { + // We don't use save_and_disable_interrupts() from the sdk because we don't want to worry about PRIMASK. + // This is what we do on the SAMD21 via CMSIS. + asm volatile ("cpsid i" : : : "memory"); + __dmb(); + nesting_count++; +} + +void common_hal_mcu_enable_interrupts(void) { + if (nesting_count == 0) { + // reset_into_safe_mode(LOCKING_ERROR); + } + nesting_count--; + if (nesting_count > 0) { + return; + } + __dmb(); + asm volatile ("cpsie i" : : : "memory"); +} + +static bool next_reset_to_bootloader = false; + +void common_hal_mcu_on_next_reset(mcu_runmode_t runmode) { + switch (runmode) { + case RUNMODE_UF2: + case RUNMODE_BOOTLOADER: + next_reset_to_bootloader = true; + break; + case RUNMODE_SAFE_MODE: + safe_mode_on_next_reset(PROGRAMMATIC_SAFE_MODE); + break; + default: + break; + } +} + +void common_hal_mcu_reset(void) { + filesystem_flush(); + if (next_reset_to_bootloader) { + reset_to_bootloader(); + } else { + reset_cpu(); + } +} + +// The singleton microcontroller.Processor object, bound to microcontroller.cpu +// It currently only has properties, and no state. +#if CIRCUITPY_PROCESSOR_COUNT > 1 +static const mcu_processor_obj_t processor0 = { + .base = { + .type = &mcu_processor_type, + }, +}; + +static const mcu_processor_obj_t processor1 = { + .base = { + .type = &mcu_processor_type, + }, +}; + +const mp_rom_obj_tuple_t common_hal_multi_processor_obj = { + {&mp_type_tuple}, + CIRCUITPY_PROCESSOR_COUNT, + { + MP_ROM_PTR(&processor0), + MP_ROM_PTR(&processor1) + } +}; +#endif + +const mcu_processor_obj_t common_hal_mcu_processor_obj = { + .base = { + .type = &mcu_processor_type, + }, +}; + +#if CIRCUITPY_NVM && CIRCUITPY_INTERNAL_NVM_SIZE > 0 +// The singleton nvm.ByteArray object. +const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = { + .base = { + .type = &nvm_bytearray_type, + }, + .len = CIRCUITPY_INTERNAL_NVM_SIZE, + .start_address = (uint8_t *)(CIRCUITPY_INTERNAL_NVM_START_ADDR) +}; +#endif + +#if CIRCUITPY_WATCHDOG +// The singleton watchdog.WatchDogTimer object. +watchdog_watchdogtimer_obj_t common_hal_mcu_watchdogtimer_obj = { + .base = { + .type = &watchdog_watchdogtimer_type, + }, + .timeout = 0.0f, + .mode = WATCHDOGMODE_NONE, +}; +#endif + +// This maps MCU pin names to pin objects. +const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT] = { + { MP_ROM_QSTR(MP_QSTR_GPIO0), MP_ROM_PTR(&pin_GPIO0) }, + { MP_ROM_QSTR(MP_QSTR_GPIO1), MP_ROM_PTR(&pin_GPIO1) }, + { MP_ROM_QSTR(MP_QSTR_GPIO2), MP_ROM_PTR(&pin_GPIO2) }, + { MP_ROM_QSTR(MP_QSTR_GPIO3), MP_ROM_PTR(&pin_GPIO3) }, + { MP_ROM_QSTR(MP_QSTR_GPIO4), MP_ROM_PTR(&pin_GPIO4) }, + { MP_ROM_QSTR(MP_QSTR_GPIO5), MP_ROM_PTR(&pin_GPIO5) }, + { MP_ROM_QSTR(MP_QSTR_GPIO6), MP_ROM_PTR(&pin_GPIO6) }, + { MP_ROM_QSTR(MP_QSTR_GPIO7), MP_ROM_PTR(&pin_GPIO7) }, + { MP_ROM_QSTR(MP_QSTR_GPIO8), MP_ROM_PTR(&pin_GPIO8) }, + { MP_ROM_QSTR(MP_QSTR_GPIO9), MP_ROM_PTR(&pin_GPIO9) }, + { MP_ROM_QSTR(MP_QSTR_GPIO10), MP_ROM_PTR(&pin_GPIO10) }, + { MP_ROM_QSTR(MP_QSTR_GPIO11), MP_ROM_PTR(&pin_GPIO11) }, + { MP_ROM_QSTR(MP_QSTR_GPIO12), MP_ROM_PTR(&pin_GPIO12) }, + { MP_ROM_QSTR(MP_QSTR_GPIO13), MP_ROM_PTR(&pin_GPIO13) }, + { MP_ROM_QSTR(MP_QSTR_GPIO14), MP_ROM_PTR(&pin_GPIO14) }, + { MP_ROM_QSTR(MP_QSTR_GPIO15), MP_ROM_PTR(&pin_GPIO15) }, + { MP_ROM_QSTR(MP_QSTR_GPIO16), MP_ROM_PTR(&pin_GPIO16) }, + { MP_ROM_QSTR(MP_QSTR_GPIO17), MP_ROM_PTR(&pin_GPIO17) }, + { MP_ROM_QSTR(MP_QSTR_GPIO18), MP_ROM_PTR(&pin_GPIO18) }, + { MP_ROM_QSTR(MP_QSTR_GPIO19), MP_ROM_PTR(&pin_GPIO19) }, + { MP_ROM_QSTR(MP_QSTR_GPIO20), MP_ROM_PTR(&pin_GPIO20) }, + { MP_ROM_QSTR(MP_QSTR_GPIO21), MP_ROM_PTR(&pin_GPIO21) }, + { MP_ROM_QSTR(MP_QSTR_GPIO22), MP_ROM_PTR(&pin_GPIO22) }, + { MP_ROM_QSTR(MP_QSTR_GPIO23), MP_ROM_PTR(&pin_GPIO23) }, + { MP_ROM_QSTR(MP_QSTR_GPIO24), MP_ROM_PTR(&pin_GPIO24) }, + { MP_ROM_QSTR(MP_QSTR_GPIO25), MP_ROM_PTR(&pin_GPIO25) }, + { MP_ROM_QSTR(MP_QSTR_GPIO26), MP_ROM_PTR(&pin_GPIO26) }, + { MP_ROM_QSTR(MP_QSTR_GPIO27), MP_ROM_PTR(&pin_GPIO27) }, + { MP_ROM_QSTR(MP_QSTR_GPIO28), MP_ROM_PTR(&pin_GPIO28) }, + { MP_ROM_QSTR(MP_QSTR_GPIO29), MP_ROM_PTR(&pin_GPIO29) }, +}; +MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_global_dict_table); |