blob: fc838f806a1061c986c0194c05007c7c89141166 [file] [log] [blame]
/*
*
* Copyright (c) 2020 Project CHIP 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
*
* http://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.
*/
#pragma once
#include "AppTask.h"
#include "driver/gpio.h"
#include "freertos/FreeRTOS.h"
#include <stdint.h>
class Button
{
public:
esp_err_t Init(gpio_num_t gpioNum, uint16_t debouncePeriod);
bool Poll();
bool IsPressed();
uint32_t GetStateStartTime();
uint32_t GetStateDuration();
uint32_t GetPrevStateDuration();
private:
// in ticks
uint32_t mLastReadTime;
// in ticks
uint32_t mStateStartTime;
// in ticks
uint32_t mPrevStateDur;
gpio_num_t mGPIONum;
// in ticks
uint16_t mDebouncePeriod;
// true when button is pressed
bool mState;
bool mLastPolledState;
};
inline bool Button::IsPressed()
{
return mState;
}
inline uint32_t Button::GetStateStartTime()
{
return mStateStartTime * portTICK_PERIOD_MS;
}
inline uint32_t Button::GetPrevStateDuration()
{
return mPrevStateDur * portTICK_PERIOD_MS;
}