#include "key.h"

KEYCTL Switch[KEY_NUM_MAX];

//*******************************************************
void keyInit(KEYCTL* key, BYTE num){
	while(num){
		key->ctl.Byte = 0;
		key++;
		num--;
	}
}

//********************************************************
void keyDebounce(KEYCTL* key, BYTE input){
	BYTE keycount;

	keycount = key->count;
	
	if(input != FALSE){
		if(keycount < KEY_HOLD_TH_CNT)
			keycount++;
		else
			key->ctl.Bits.hold = TRUE;
	}
	else{
		if(keycount > KEY_PRESS_TH_CNT)
			keycount = KEY_PRESS_TH_CNT;
		
		if(keycount > KEY_RELEASE)
			keycount--;
	}

	if(keycount == KEY_RELEASE){
		if(key->ctl.Bits.press_s){
			if(key->ctl.Bits.hold)
				key->ctl.Bits.release_h = TRUE;
			else
				key->ctl.Bits.release = TRUE;
			    key->ctl.Bits.press_s = FALSE;
		}
		key->ctl.Bits.status = FALSE;
		key->ctl.Bits.hold = FALSE;
	}
	
	if(keycount >= KEY_PRESS_TH_CNT){
		if(key->ctl.Bits.press_s == FALSE){
			key->ctl.Bits.press_s = TRUE;
			key->ctl.Bits.press = TRUE;
		}
		key->ctl.Bits.status = TRUE;
	}
	
	key->count = keycount;
}

//***********************************************************
BYTE keyGetPress(KEYCTL* key){
	BYTE press;
	press = key->ctl.Bits.press;
	if(press)
		key->ctl.Bits.press = FALSE;
	return(press);
}
//***********************************************************
BYTE keyGetRelease(KEYCTL* key){
	BYTE release;
	release = key->ctl.Bits.release;
	if(release)
		key->ctl.Bits.release = FALSE;
	return(release);
}
//************************************************************
BYTE keyGetHoldRelease(KEYCTL* key){
	BYTE release_h;
	release_h = key->ctl.Bits.release_h;
	if(release_h)
		key->ctl.Bits.release_h = FALSE;
	return(release_h);
}

//*************************************************************
void keyScan(void)
{
    keyDebounce(&SW_LOCK, 	          !SW_LOCK_PORT);
    keyDebounce(&SW_UNLOCK,  	      !SW_UNLOCK_PORT);
    keyDebounce(&SW_OPEN_TRUNK, 	  !SW_OPEN_TRUNK_PORT);
    keyDebounce(&SW_CAR_LOCATION, 	  !SW_CAR_LOCATION_PORT);
}