92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
#ifndef __KEYSCAN_H
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#define __KEYSCAN_H
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#include "basic_include.h"
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/**************************************************************************
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* 按键的事件
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* 说明:按键触发可能短时间由多个事件,比如长按:先是有个按键按下->长按按下->长按释放
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* 所以要考虑监听哪个事件,比如短按的,最好监听短按释放,毕竟按键按下事件都会有触发的
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***************************************************************************/
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enum
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{
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KEY_EVENT_DOWN, //按键按下
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KEY_EVENT_SUP, //短按释放
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KEY_EVENT_LDOWN, //长按按下
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KEY_EVENT_LUP, //长按释放
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KEY_EVENT_REPEAT, //一直按住按键
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KEY_EVENT_MAX,
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};
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/***************************************
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* 按键值的定义
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***************************************/
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enum
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{
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KEY_NONE,
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AD_UP,
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AD_DOWN,
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AD_LEFT,
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AD_RIGHT,
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AD_PRESS,
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AD_A,
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AD_B,
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AD_C,
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AD_SPEACH,
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KEY_BACK,
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KEY_MAGIC_SWITCH,
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KEY_IPF_SWITCH,
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KEY_PAIR,
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KEY_POWER,
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KEY_POWEROFF,
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LOWPOWER_CHECK,
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KEY_CALLING_START,
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KEY_CALLING_STOP,
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};
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struct key_channel_t ;
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struct keys_t ;
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typedef struct key_channel_t key_channel_t;
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typedef void (*keyinit_func) (struct key_channel_t*);
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typedef void (*keyprepare_func) (struct key_channel_t*);
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typedef uint8 (*keyscan_func) (struct key_channel_t*);
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typedef int32 (*key_send_msg) (uint32 data,uint32_t value);
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typedef uint32 key_map_t[KEY_EVENT_MAX];
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typedef struct keys_t keys_t;
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struct keys_t
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{
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uint32_t period_long;
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uint32_t period_repeat;
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uint32_t period_dither;
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};
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struct key_channel_t
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{
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keyinit_func init; //初始化
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keyprepare_func prepare;//scan之前的准备,可以设置为NULL，也可以去设置enable值来作为是否要进行按键检测
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keyscan_func scan; //获取按键键值
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const void *key_table;//按键表格,scan需要用到,如果是adc需要根据表格获取是哪个按键被按下
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const keys_t *key_arg;
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void *priv;
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key_send_msg key_send;
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uint32_t last_key;
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uint32_t last_time;
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uint32_t last_event;
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uint32_t extern_value;
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uint8 enable;
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};
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void key_button_scan_init(key_channel_t **channel,key_send_msg send);
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#endif |