By default, driver reports touches when it gots (1 << ts.shift)
samples, even if stylus is up. This behavior looks wrong to me.
Patch makes driver to report touches only when stylus is down.
Signed-off-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>
---
drivers/input/touchscreen/s3c2410_ts.c | 22 +++++++++++-----------
1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 6386b44..e2fe2ed 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -128,25 +128,25 @@ static void touch_timer_fire(unsigned long data)
down = get_down(data0, data1);
- if (ts.count == (1 << ts.shift)) {
- ts.xp >>= ts.shift;
- ts.yp >>= ts.shift;
+ if (down) {
+ if (ts.count == (1 << ts.shift)) {
+ ts.xp >>= ts.shift;
+ ts.yp >>= ts.shift;
- dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
- __func__, ts.xp, ts.yp, ts.count);
+ dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
+ __func__, ts.xp, ts.yp, ts.count);
- input_report_abs(ts.input, ABS_X, ts.xp);
- input_report_abs(ts.input, ABS_Y, ts.yp);
+ input_report_abs(ts.input, ABS_X, ts.xp);
+ input_report_abs(ts.input, ABS_Y, ts.yp);
- input_report_key(ts.input, BTN_TOUCH, 1);
- input_sync(ts.input);
+ input_report_key(ts.input, BTN_TOUCH, 1);
+ input_sync(ts.input);
+ }
ts.xp = 0;
ts.yp = 0;
ts.count = 0;
- }
- if (down) {
s3c_adc_start(ts.client, 0, 1 << ts.shift);
} else {
ts.count = 0;
--
1.7.0
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