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// Copyright 2020 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include "pw_board_led/led.h"
#include <Arduino.h>
#include <cinttypes>
// pw::board_led API implementation for the Teensy 3.x and 4.x using the Arduino
// digitalWrite function.
namespace pw::board_led {
namespace {
constexpr int kLedPin = 13;
bool led_on = false;
} // namespace
void Init() {
pinMode(kLedPin, OUTPUT);
TurnOff();
}
void TurnOff() {
digitalWrite(kLedPin, LOW);
led_on = false;
}
void TurnOn() {
digitalWrite(kLedPin, HIGH);
led_on = true;
}
void Toggle() {
// Check if the LED is on. If so, turn it off.
if (led_on) {
TurnOff();
} else {
TurnOn();
}
}
} // namespace pw::board_led