diff options
| -rw-r--r-- | drivers/input/touchscreen/s3c2410_ts.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c index 0933a33bc9a..5b4cd52ec01 100644 --- a/drivers/input/touchscreen/s3c2410_ts.c +++ b/drivers/input/touchscreen/s3c2410_ts.c @@ -118,6 +118,7 @@ struct s3c2410ts { struct s3c2410ts_sample raw_running_avg; int reject_threshold_vs_avg; int flag_previous_exceeded_threshold; + int flag_first_touch_sent; }; static struct s3c2410ts ts; @@ -130,6 +131,7 @@ static void clear_raw_fifo(void) ts.raw_running_avg.x = 0; ts.raw_running_avg.y = 0; ts.flag_previous_exceeded_threshold = 0; + ts.flag_first_touch_sent = 0; } @@ -153,6 +155,19 @@ static void touch_timer_fire(unsigned long data) updown = (!(data0 & S3C2410_ADCDAT0_UPDOWN)) && (!(data1 & S3C2410_ADCDAT0_UPDOWN)); + // if we need to send an untouch event, but we haven't yet sent the + // touch event (this happens if the touchscreen was tapped lightly), + // send the touch event first + if (!updown && !ts.flag_first_touch_sent && ts.count != 0) { + input_report_abs(ts.dev, ABS_X, ts.xp >> ts.shift); + input_report_abs(ts.dev, ABS_Y, ts.yp >> ts.shift); + + input_report_key(ts.dev, BTN_TOUCH, 1); + input_report_abs(ts.dev, ABS_PRESSURE, 1); + input_sync(ts.dev); + ts.flag_first_touch_sent = 1; + } + if (updown) { if (ts.count != 0) { ts.xp >>= ts.shift; @@ -174,6 +189,7 @@ static void touch_timer_fire(unsigned long data) input_report_key(ts.dev, BTN_TOUCH, 1); input_report_abs(ts.dev, ABS_PRESSURE, 1); input_sync(ts.dev); + ts.flag_first_touch_sent = 1; } ts.xp = 0; @@ -190,6 +206,7 @@ static void touch_timer_fire(unsigned long data) input_report_key(ts.dev, BTN_TOUCH, 0); input_report_abs(ts.dev, ABS_PRESSURE, 0); input_sync(ts.dev); + ts.flag_first_touch_sent = 0; writel(WAIT4INT(0), base_addr+S3C2410_ADCTSC); } |