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/*

* Copyright (c) 2016 Zibin Zheng <[email protected]>

* All rights reserved

*/

#ifndef _MULTI_BUTTON_H_

#define _MULTI_BUTTON_H_

#include "stdint.h"

#include "string.h"

//According to your need to modify the constants.

#define TICKS_INTERVAL 5 //ms

#define DEBOUNCE_TICKS 3 //MAX 8

#define SHORT_TICKS (300 /TICKS_INTERVAL)

#define LONG_TICKS (1000 /TICKS_INTERVAL)

typedef void (*BtnCallback)(void*);

typedef enum {

PRESS_DOWN = 0,

PRESS_UP,

PRESS_REPEAT,

SINGLE_CLICK,

DOUBLE_CLICK,

LONG_PRESS_START,

LONG_PRESS_HOLD,

number_of_event,

NONE_PRESS

}PressEvent;

typedef struct Button {

uint16_t ticks;

uint8_t repeat : 4;

uint8_t event : 4;

uint8_t state : 3;

uint8_t debounce_cnt : 3;

uint8_t active_level : 1;

uint8_t button_level : 1;

uint8_t (*hal_button_Level)(void);

BtnCallback cb[number_of_event];

struct Button* next;

}Button;

#ifdef __cplusplus

extern "C" {

#endif

void button_init(struct Button* handle, uint8_t(*pin_level)(), uint8_t active_level);

void button_attach(struct Button* handle, PressEvent event, BtnCallback cb);

PressEvent get_button_event(struct Button* handle);

int button_start(struct Button* handle);

void button_stop(struct Button* handle);

void button_ticks(void);

#ifdef __cplusplus

}

#endif

#endif