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/************************************************************** 
 *
 *
 * Module Name:	key 
 * File name:	key.h 
 * Brief description:
 *    key driver module
 * Author:	Eagle.Lao
 * Data:	2017-07-01
 * Revision:V0.01
****************************************************************/

#ifndef __KEY_H__
#define __KEY_H__

#include "types.h"
#include "gpio.h"

#define HAL_KEY_NUM 						      2      //config key's number
#define HAL_KEY_EVENT						      0x0100 //assign short key event in your app event process

#define HAL_KEY_SUPPORT_LONG_PRESS           //if use long key,please enable it
#ifdef HAL_KEY_SUPPORT_LONG_PRESS
#define HAL_KEY_LONG_PRESS_TIME       2000    //2s
#endif

#define HAL_KEY_DEBOUNCD              20      //20ms

typedef enum{
	HAL_STATE_KEY_IDLE = 0x00,
	HAL_STATE_KEY_PRESS_DEBOUNCE = 0x01,
	HAL_STATE_KEY_PRESS = 0x02,
	HAL_STATE_KEY_RELEASE_DEBOUNCE = 0x03,
}key_state_e;

typedef enum{
	HAL_KEY_EVT_IDLE = 0x0000,
	HAL_KEY_EVT_PRESS   = 0x0002,
	HAL_KEY_EVT_RELEASE = 0x0004,
	HAL_KEY_EVT_LONG_PRESS = 0x0010,
	HAL_KEY_EVT_LONG_RELEASE = 0x0020,
} key_evt_t;

typedef enum{
	HAL_LOW_IDLE = 0x00,
	HAL_HIGH_IDLE = 0x01,
}idle_level_e;

typedef void (* key_callbank_hdl_t)(uint8_t,key_evt_t);

typedef struct gpio_key_t{
	GPIO_Pin_e 			pin;
	key_state_e    	state;
	idle_level_e 		idle_level;
	
}gpio_key;

typedef struct gpio_internal_t{
	uint32_t 	timer_tick;	
	bool     	in_enable;
	
}gpio_internal;

typedef struct key_state{
	gpio_key 						key[HAL_KEY_NUM];
	gpio_internal 			temp[HAL_KEY_NUM];
	uint8_t  						task_id;
	key_callbank_hdl_t  key_callbank;
	
}key_contex_t;


void key_init(void);
void gpio_key_timer_handler(uint8 index);
extern key_contex_t key_state;
#endif