#include <ioCC2530.h>

#define LED1 P1_0
#define LED2 P1_1
#define SW1 P1_2

//按钮锁定
unsigned char Button_lock;
unsigned char Long_click_relase = 0;
//双击间隔时间
unsigned int time = 0;
//延时
void delay(unsigned int time){
      unsigned int tt,i = 0;
      for(i = 0; i < time; i ++){
            for(tt = 0; tt<1040; tt++);
      }
}
//初始化端口
void initial_gpio(void){
      
      P1SEL &=~0X07;
      P1DIR |=0X03;
      P1DIR &=~0X04;
      P1INP &=~0X04;
      P2INP &=~0X40;
      P1 &=~0X03;
      
}
/**
* 按钮上锁
*/
void LED_flicker(void){
      unsigned char i,j;
      for(i=0;i<2;i++){
        LED1 = 1;
        delay(100);
        LED1 = 0;
        delay(100);
      }
      for(j=0;j<3;j++){
        LED2 = 1;
        delay(100);
        LED2 = 0;
        delay(100);
      }
      Button_lock = 1;
}
/**
* 检测按钮状态
* 长按返回 111
* 双击返回 222
* 单击返回 333
*/
unsigned Scan_keydown(){
      if(Long_click_relase){
            if(SW1 == 1){
              Long_click_relase = 0;
              return (444);
            }
      }
      if(SW1 == 0){
            delay(10);
            if(SW1 == 0){
                  time = 0;
                  while(!SW1){
                        delay(1);
                        time++;
                        if(time>1200){
                              Long_click_relase = 1;
                              return (111); 
                        }
                  }
                  
                  delay(50);
                  time = 10;
                  while(time--){
                        if(SW1 == 0){
                              while(!SW1);
                              return (222); 
                        }
                        delay(10);
                  }
                  
                  return (333); 
            }
      }
      return (0);
}
/*
* 控制LED
* 双击点亮LED2
* 单击点亮LED1
*/
void control_LED(){
      int key_status = Scan_keydown();
      //判断是否长按
      if(key_status == 444){
            //检测上锁状态
            if(Button_lock){ //如果上锁则解锁
                  LED1 = 1;
                  delay(350);
                  LED1 = 0;
                  Button_lock = 0;
            }else if(!Button_lock){ //如果解锁则上锁
                  LED1 = 1;
                  LED2 = 1;
                  delay(350);
                  LED1 = 0;
                  LED2 = 0;
                  Button_lock = 1;
            }
      }
      if(!Button_lock){ //解锁状态下判断按键状态
            //如果双击
            if(key_status == 222){
                  LED2 = ~LED2;
            }
            //如果单击
            if(key_status == 333){
                  LED1 = ~LED1;
                  
            }
            key_status = 0;
      }
      
      
}
void main(void){
      initial_gpio();
      LED_flicker();
      for(;;){
            control_LED();
      }
}