???????????????????????е????????????????


static inline void s3c2410_ts_connect(void)
{
//??????????????????????ó????????
       s3c2410_gpio_cfgpin(S3C2410_GPG(12)?? S3C2410_GPG12_XMON);
       s3c2410_gpio_cfgpin(S3C2410_GPG(13)?? S3C2410_GPG13_nXPON);
       s3c2410_gpio_cfgpin(S3C2410_GPG(14)?? S3C2410_GPG14_YMON);
       s3c2410_gpio_cfgpin(S3C2410_GPG(15)?? S3C2410_GPG15_nYPON);
}


??????????????????????????????????????а??′?????

?????????ж?????????????


static struct timer_list touch_timer =
TIMER_INITIALIZER(touch_timer_fire?? 0?? 0);


?????????????????????????0???????????????????????ζ??????touch_timer_fire


static void touch_timer_fire(unsigned long data)
{
     unsigned long data0;
     unsigned long data1;
       int updown;
     data0 = ioread32(base_addr+S3C2410_ADCDAT0);  //???X????
     data1 = ioread32(base_addr+S3C2410_ADCDAT1);  //???Y????
      updown = (!(data0 & S3C2410_ADCDAT0_UPDOWN)) && (!(data1 & S3C2410_ADCDAT0_UPDOWN)); //????????????￡????????updowm=1
      if (updown) {
             if (count != 0) {
                     long tmp;                                                                                        
                     tmp = xp;
                     xp = yp;
                     yp = tmp;                                                                                        
           xp >>= 2;
           yp >>= 2;
                    input_report_abs(dev?? ABS_X?? xp);
                    input_report_abs(dev?? ABS_Y?? yp);
                    input_report_key(dev?? BTN_TOUCH?? 1);
                    input_report_abs(dev?? ABS_PRESSURE?? 1);
                    input_sync(dev);
             }
             xp = 0;    
             yp = 0;
             count = 0;
             iowrite32(S3C2410_ADCTSC_PULL_UP_DISABLE | AUTOPST?? base_addr+S3C2410_ADCTSC);
             iowrite32(ioread32(base_addr+S3C2410_ADCCON) | S3C2410_ADCCON_ENABLE_START?? base_addr+S3C2410_ADCCON);
      } else { //??б?????
             count = 0;        //?????count?0????????AD????????
             input_report_key(dev?? BTN_TOUCH?? 0);  //??input????????δ????
             input_report_abs(dev?? ABS_PRESSURE?? 0);
             input_sync(dev);
             iowrite32(WAIT4INT(0)?? base_addr+S3C2410_ADCTSC); //????????ж?
              if (OwnADC) { //OwnADC??????????????????0
                     OwnADC = 0;
                     up(&ADC_LOCK);
              }
      }