You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.
/*
* Copyright (c) 2016 Zibin Zheng <znbin@qq.com>
* All rights reserved
*/
# ifndef _BUTTON_H_
# define _BUTTON_H_
# include "stdint.h"
# include "string.h"
typedef void ( * BtnCallback ) ( const struct Button * btn ) ;
typedef enum {
PRESS_DOWN = 0 ,
PRESS_UP ,
PRESS_REPEAT ,
SINGLE_CLICK ,
DOUBLE_CLICK ,
LONG_RRESS_START ,
LONG_PRESS_HOLD ,
number_of_event ，
NONE_PRESS
} PressEvent ;
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 ;
} ;
# 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 , CallBackFunc cb ) ;
PressEvent get_button_event ( const struct Button * handle ) ;
int button_start ( struct Button * btn ) ;
void button_stop ( struct Button * btn ) ;
void button_ticks ( void ) ;
# ifdef __cplusplus
}
# endif
# endif