C++ (Cpp) Key_Read Examples

Example #1

u16 get_key_val_no_irq (void)
{
	char datac,tstint;
	int num;
	U16 keysca;
	
	do
        {
             	do
             	{
			/* ´Ó¼üÅ̽ÚƬ¶ÁÈ¡¼üÖµ */
       			if (Key_Read(&datac, 0x0))
				printk (KERN_ALERT "Keyb chip read failed.\n");
#ifdef KEYB_DEBUG
			printk (KERN_ALERT "keyirq: the key is %x\n", keysca);
#endif
			if (datac == 0x0)
				return 0;

                	num = (int) (datac & 0x3f);
                	keysca = raw2scancode(num);
#ifdef __NEW_KB
			if (keysca == 0x0f)
			{
				//mdelay (15000);
				pkeyb_dev->is_backlight = !at91_get_gpio_value(KEY_BL);
				at91_set_gpio_value (KEY_BL, pkeyb_dev->is_backlight);
				//at91_set_gpio_value (KEY_BL, !at91_get_gpio_value (KEY_BL));
			}
			else
			{
				if (!at91_get_gpio_value (KEY_SHT))
					keysca |= (0x0f << 8);
				
				//if (kbufin (keysca))
				//	printk (KERN_ALERT "petworm: kbufin full.\n");
			}
#else
			/* ½«¶ÁÈ¡µÄ¼üÖµ·ÅÈ뻺³åÇø */
			if (kbufin (keysca))
				printk (KERN_ALERT "petworm: kbufin full.\n");
#endif



#ifdef __NET_KB
                }while (((datac & 0x40) != 0x0) || (datac != 0x0));
#else
                }while (((datac & 0x40) != 0x0));
#endif

                Key_Read(&tstint, 0x3);
	}while ((tstint & 0x80) != 0);

Example #2

File: key.c Project: zhangfeibao/YTN-E608-WIFI

void Key_ActionDetect(void)
{
    uint8_t Key_codeBuf;

    static uint8_t Key_stateHoldCnt;
    static uint8_t Key_stateHoldCntExt;

    Key_codeBuf = Key_Read();
    if (Key_Code != Key_codeBuf)
    {
        if (Key_codeBuf == KEY_NULL && Key_stateHoldCnt > 5 && Key_stateHoldCnt < 150)
        {
            Key_Action = KEY_ACTION_RELEASING;
            currentState->keyAction_handler();
        }
        Key_Code = Key_codeBuf;
    }
    else
    {
        if (Key_Code == 0)
        {
            Key_stateHoldCnt = 0;
            Key_stateHoldCntExt = 0;

            Key_Released = TRUE;
        }
        else
        {
            Key_Action = KEY_ACTION_UNDEFINE;
            Key_stateHoldCnt++;
            Key_stateHoldCntExt++;

            if (Key_stateHoldCntExt > 60)
            {
                Key_stateHoldCntExt = 45;
                Key_Action = KEY_ACTION_INTERVAL;
                currentState->keyAction_handler();
            }

            if (Key_stateHoldCnt == 5)
            {
                Key_Action = KEY_ACTION_SHORT;
            }
            else if (Key_stateHoldCnt == 248)
            {
                Key_Action = KEY_ACTION_LONG;
            }
            else
            {
                if (Key_stateHoldCnt > 250)
                {
                    Key_stateHoldCnt = 250;
                }
                return;
            }

            currentState->keyAction_handler();
        }
    }
}

Example #3

File: Keypad_LCD.c Project: Hazem-MS/Pic16F877A_Password

void main()
{
     b=1;
     trisb = 0b00001111;
     trisc = 0b10000000;
     portc = 0;
     ///////////// Store The Password(12345) //////////
     Eeprom_Write(0x00,1);
     Eeprom_Write(0x01,2);
     Eeprom_Write(0x02,3);
     Eeprom_Write(0x03,4);
     Eeprom_Write(0x04,5);
     //////////////////////////////////////////
     Lcd_Init(&portd);
S:   Lcd_Cmd(Lcd_Clear);
     Lcd_Out_Cp("Ent Pass:"******"*");
                            delay_ms(700);

                do{
                                    K = Key_Read();
                            }
                while(k==20);
               // Lcd_Out_Cp("*");
                if(k==10)

                {
    ////////////// Detection Process /////////////////////
                
                for(i = 0;i <= 4;i++)
                {
                  if(sum==0) sum = sum + (Eeprom_Read(i) - Eeprom_Read(i + 5));
                }

                if(sum == 0){ b=1;
                              Lcd_Out(2,1,"OPEN");

                              portc=1;

                              //do
                              //{
                              for(x=1000 ; x>2; x--)
                              {
                              delay_ms(10);
                              PORTC=PORTC<<1;
                              if (PORTc.F4) PORTC=1;
                              

                              }
                              delay_ms(5000);
                              for(x=1000; x>2; x--)
                              {
                              delay_ms(10);
                              PORTC=PORTC>>1;
                              if (PORTC==0) PORTc=8;
                               }
                               for(a=0;a<5;a++)
                               { Eeprom_Write(a+5,19);
                                }
                               goto S;

                            }
                else {
                        Lcd_Out(2,1,"ERORR");
                        b++;
                         delay_ms(500);
                       if(b==4){
                              while(1){delay_ms(500); Lcd_Out(2,1,"LOCKED"); }}
                        
                      } }   }