ozone_cp/APP/key.h

#pragma once
#include <stdint.h>
#include <stdbool.h>

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))

#define s_key_init(_name, _get_key_state) \
    {                                     \
        .name = _name,                    \
        .get_key_state = _get_key_state   \
    }

#define key_module_init(_skeys, _onkey) \
    {                                   \
        .keys = _skeys,                 \
        .nkey = ARRAY_SIZE(_skeys),     \
        .onkey = _onkey                 \
    }

typedef bool (*get_key_state_t)(void);

/**
 * @brief 按键状态
 *
 */
typedef enum
{
    // mode1
    zks_keep,
    zks_rising_edge,  //上升沿按键按下从0-1
    zks_falling_edge, //下降沿按键抬起1-0

    // mode2
    zks_trigger_event,          //触发
    zks_longtime_trigger_event, //长时间触发
} key_state_t;

/**
 * @brief 按键属性
 *
 */
typedef struct
{
    const char *name;
    get_key_state_t get_key_state;
    bool last_io_state;

    key_state_t cur_state;     //当前的状态
    uint32_t keep_state_count; /*按键当前状态保持了多久*/

    bool hasProcessed; /*useful for user*/
    bool after_filter_state;

    uint32_t currentstatekeep_count; //消抖使用
    bool last_real_state;            //消抖使用
} key_t;

/**
 * @brief 按键模块
 *
 */
typedef struct
{
    key_t *keys;
    int nkey;
    void (*onkey)(key_t *key, key_state_t key_state);
} key_module_t;

void key_init(key_module_t *key_module);
void key_do_loop_in_each_period();
void key_process_each(key_t *each);