/*
 * Button.c
 *
 *  Created on: Jan 31, 2018
 *      Author: Administrator
 */
#include "Button.h"

unsigned int Lin_switch_state;
unsigned int Button_1_count,Button_2_count,Button_3_count,Button_4_count,Button_5_count;
unsigned int Button_6_count,Button_7_count,Button_8_count,Button_9_count,Button_10_count,Button_11_count;
unsigned char initflag[11]={1,1,1,1,1,1,1,1,1,1,1};
unsigned char button_stick=0;
unsigned char lin_Signal_HORN;
extern unsigned char Sig_LI0_MFL_ButtonRight_err,Sig_LI0_MFL_ButtonLeft_err;
void Button_Scan(void)
{
	unsigned char Lin_switch_state_Bit_Feed=0;
	button_stick = 0;
	//Left
	Button_detect((unsigned char)Button_SEEK_Add,	&Button_4_count,&Lin_switch_state,21,&initflag[3]);
	Button_detect((unsigned char)Button_SEEK_Reduce,&Button_5_count,&Lin_switch_state,22,&initflag[4]);
	Button_detect((unsigned char)Button_V_Add,		&Button_6_count,&Lin_switch_state,16,&initflag[5]);
	Button_detect((unsigned char)Button_V_Reduce,	&Button_7_count,&Lin_switch_state,17,&initflag[6]);
	Button_detect((unsigned char)Button_MUTE,		&Button_10_count,&Lin_switch_state,32,&initflag[9]);
	Sig_LI0_MFL_ButtonLeft_err = button_stick;
	button_stick = 0;
	//Right
	Button_detect((unsigned char)Button_SIRI,		&Button_8_count,&Lin_switch_state,25,&initflag[7]);
	Button_detect((unsigned char)Button_PHONE,		&Button_9_count,&Lin_switch_state,28,&initflag[8]);
	Button_detect((unsigned char)Button_UP,			&Button_1_count,&Lin_switch_state,4,&initflag[0]);
	Button_detect((unsigned char)Button_DOWN,		&Button_2_count,&Lin_switch_state,5,&initflag[1]);
	Button_detect((unsigned char)Button_OK,			&Button_3_count,&Lin_switch_state,7,&initflag[2]);
	Sig_LI0_MFL_ButtonRight_err = button_stick;
	
	Lin_switch_state_Bit_Feed=Lin_switch_state_Bit(&Lin_switch_state);
	if(Lin_switch_state_Bit_Feed==0)
	{
		Sig_LI0_MFL_Tastencode_1=0;
		Sig_LI0_MFL_Tastencode_2=0;
	}
	
	Signal_HORN_detect();
}
void Signal_HORN_detect(void)
{
	if(!Signal_HORN)
	{
		Button_11_count++;
		if(Button_11_count>=3)
		{
			lin_Signal_HORN=1;
		}
	}
	else
	{
		Button_11_count=0;
		lin_Signal_HORN=0;	
	}
}
void Button_detect(unsigned char Button_state,unsigned int *Button_delay_count,
		           unsigned int *Lin_switch_state,unsigned char Lin_switch_data,unsigned char *initcode)
{
	unsigned char Lin_switch_state_Bit_Feed=0;
	if(Button_state==0)
	{
		if(*initcode != 0)return;
			
		(*Button_delay_count)++;
		if(*Button_delay_count>=3 && *Button_delay_count<12000)
		{
			*Lin_switch_state|=1<<(Button_to_Bit(Lin_switch_data));//0X21
			Lin_switch_state_Bit_Feed=Lin_switch_state_Bit(Lin_switch_state);
			if(Lin_switch_state_Bit_Feed==1)
			{
				Sig_LI0_MFL_Tastencode_1=Lin_switch_data;
				Sig_LI0_MFL_Tastencode_2=0;
			}
			else if(Lin_switch_state_Bit_Feed==2 && (Sig_LI0_MFL_Tastencode_1!=Lin_switch_data)&&(Sig_LI0_MFL_Tastencode_2==0))
			{
				Sig_LI0_MFL_Tastencode_2=Lin_switch_data;
			}
		}
		if(*Button_delay_count>=12000)
		{
			*Button_delay_count = 12000;
			button_stick = 1;
			*Lin_switch_state&=~(1<<(Button_to_Bit(Lin_switch_data)));
		}
	}
	else
	{
		*Button_delay_count=0;
		*Lin_switch_state&=~(1<<(Button_to_Bit(Lin_switch_data)));
		*initcode = 0;
	}
	/* 为啥放在这？
	if(Button_to_Bit(Lin_switch_data)==9)
	{
		Lin_switch_state_Bit_Feed=Lin_switch_state_Bit(Lin_switch_state);
		if(Lin_switch_state_Bit_Feed==0)
		{
			Sig_LI0_MFL_Tastencode_1=0;
			Sig_LI0_MFL_Tastencode_2=0;
		}
	}
	*/
}

unsigned char Button_to_Bit(unsigned char Button_Sig)
{
	if(Button_Sig==4)
	{
		return 0;
	}
	else if(Button_Sig==5)
	{
		return 1;
	}
	else if(Button_Sig==7)
	{
		return 2;
	}
	else if(Button_Sig==21)
	{
		return 3;
	}
	else if(Button_Sig==22)
	{
		return 4;
	}
	else if(Button_Sig==16)
	{
		return 5;
	}
	else if(Button_Sig==17)
	{
		return 6;
	}
	else if (Button_Sig==25)
	{
		return 7;
	}
	else if(Button_Sig==28)
	{
		return 8;
	}
	else if(Button_Sig==32)
	{
		return 9;
	}
}

unsigned char Lin_switch_state_Bit(unsigned int *Lin_switch_state)
{
	unsigned char i,Switch_num=0;
	for(i=0;i<10;i++)
	{
		if(*Lin_switch_state&(1<<i))
		{
			Switch_num++;
			if(Switch_num==2)
			{
				return Switch_num;
			}
		}
	}
	return Switch_num;
}