circuitpython/atmel-samd/boards/circuitplayground_express/board.c

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 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 <string.h>
#include "boards/board.h"
#include "asf/sam0/drivers/port/port.h"
#include "common-hal/microcontroller/Pin.h"
#include "shared-bindings/digitalio/DigitalInOut.h"
#include "shared-bindings/neopixel_write/__init__.h"
#include "samd21_pins.h"
void board_init(void)
{
}
// Check the status of the two buttons on CircuitPlayground Express. If both are
// pressed, then boot into user safe mode.
bool board_requests_safe_mode(void) {
struct port_config pin_conf;
port_get_config_defaults(&pin_conf);
pin_conf.direction = PORT_PIN_DIR_INPUT;
pin_conf.input_pull = PORT_PIN_PULL_DOWN;
port_pin_set_config(PIN_PA14, &pin_conf);
port_pin_set_config(PIN_PA28, &pin_conf);
bool safe_mode = port_pin_get_input_level(PIN_PA14) &&
port_pin_get_input_level(PIN_PA28);
reset_pin(PIN_PA14);
reset_pin(PIN_PA28);
return safe_mode;
}
void reset_board(void) {
uint8_t empty[30];
memset(empty, 0, 30);
digitalio_digitalinout_obj_t neopixel_pin;
common_hal_digitalio_digitalinout_construct(&neopixel_pin, &pin_PB23);
common_hal_digitalio_digitalinout_switch_to_output(&neopixel_pin, false,
DRIVE_MODE_PUSH_PULL);
common_hal_neopixel_write(&neopixel_pin, empty, 30);
common_hal_digitalio_digitalinout_deinit(&neopixel_pin);
}