131 lines
3.5 KiB
C
131 lines
3.5 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) 2017 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 <stdint.h>
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#include "supervisor/port.h"
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#include "boards/board.h"
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#include "nrfx/hal/nrf_power.h"
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#include "nrfx/drivers/include/nrfx_power.h"
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#include "nrf/cache.h"
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#include "nrf/clocks.h"
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#include "nrf/power.h"
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#include "nrf/timers.h"
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#include "shared-module/gamepad/__init__.h"
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#include "common-hal/microcontroller/Pin.h"
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#include "common-hal/bleio/__init__.h"
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#include "common-hal/busio/I2C.h"
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#include "common-hal/busio/SPI.h"
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#include "common-hal/busio/UART.h"
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#include "common-hal/pulseio/PWMOut.h"
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#include "common-hal/pulseio/PulseOut.h"
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#include "common-hal/pulseio/PulseIn.h"
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#include "common-hal/rtc/RTC.h"
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#include "tick.h"
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#include "shared-bindings/rtc/__init__.h"
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static void power_warning_handler(void) {
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reset_into_safe_mode(BROWNOUT);
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}
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safe_mode_t port_init(void) {
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nrf_peripherals_clocks_init();
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// If GPIO voltage is set wrong in UICR, this will fix it, and
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// will also do a reset to make the change take effect.
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nrf_peripherals_power_init();
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nrfx_power_pofwarn_config_t power_failure_config;
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power_failure_config.handler = power_warning_handler;
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power_failure_config.thr = NRF_POWER_POFTHR_V27;
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#if NRF_POWER_HAS_VDDH
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power_failure_config.thrvddh = NRF_POWER_POFTHRVDDH_V27;
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#endif
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nrfx_power_pof_init(&power_failure_config);
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nrfx_power_pof_enable(&power_failure_config);
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nrf_peripherals_enable_cache();
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// Configure millisecond timer initialization.
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tick_init();
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rtc_init();
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// Will do usb_init() if chip supports USB.
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board_init();
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return NO_SAFE_MODE;
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}
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void reset_port(void) {
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#ifdef CIRCUITPY_GAMEPAD_TICKS
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gamepad_reset();
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#endif
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i2c_reset();
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spi_reset();
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uart_reset();
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pwmout_reset();
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pulseout_reset();
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pulsein_reset();
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timers_reset();
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rtc_reset();
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bleio_reset();
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reset_all_pins();
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}
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void reset_to_bootloader(void) {
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enum { DFU_MAGIC_SERIAL = 0x4e };
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NRF_POWER->GPREGRET = DFU_MAGIC_SERIAL;
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reset_cpu();
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}
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void reset_cpu(void) {
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NVIC_SystemReset();
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}
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extern uint32_t _ebss;
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// Place the word to save just after our BSS section that gets blanked.
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void port_set_saved_word(uint32_t value) {
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_ebss = value;
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}
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uint32_t port_get_saved_word(void) {
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return _ebss;
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}
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void HardFault_Handler(void) {
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reset_into_safe_mode(HARD_CRASH);
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while (true) {
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asm("nop;");
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}
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}
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