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Input: s3c24xx_ts - report touch only when stylus is down

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Currently driver reports touches when it gets (1 << ts.shift) samples,
even if stylus is up, which is incorrect. We should only report coordinates
and touch condition when stylus is down.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Vasily Khoruzhick 2010-02-20 01:06:20 -08:00 • committed by Dmitry Torokhov
parent 2f09586557
commit 23c239be22
1 changed files with 20 additions and 18 deletions
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4
drivers/input/touchscreen/s3c2410_ts.c
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@ -128,6 +128,7 @@ static void touch_timer_fire(unsigned long data)
down = get_down(data0, data1); down = get_down(data0, data1);
if (down) {
if (ts.count == (1 << ts.shift)) { if (ts.count == (1 << ts.shift)) {
ts.xp >>= ts.shift; ts.xp >>= ts.shift;
ts.yp >>= ts.shift; ts.yp >>= ts.shift;
@ -146,9 +147,10 @@ static void touch_timer_fire(unsigned long data)
ts.count = 0; ts.count = 0;
} }
if (down) {
s3c_adc_start(ts.client, 0, 1 << ts.shift); s3c_adc_start(ts.client, 0, 1 << ts.shift);
} else { } else {
ts.xp = 0;
ts.yp = 0;
ts.count = 0; ts.count = 0;
input_report_key(ts.input, BTN_TOUCH, 0); input_report_key(ts.input, BTN_TOUCH, 0);