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authorMirko Vogt <mirko@openwrt.org>2008-12-12 11:58:53 +0000
committerMirko Vogt <mirko@openwrt.org>2008-12-12 11:58:53 +0000
commit614683faf8029100802db06a825648d0b6490285 (patch)
tree7401b135dc7ce24ff0175e67e0f2ce7f96296ff0 /target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch
parent4a018d2445c5f249179ff82c8fffb0e3b717f738 (diff)
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changed Makefile and profiles, added patches for kernel 2.6.24 (stable-branch of Openmoko)
SVN-Revision: 13613
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch')
-rw-r--r--target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch82
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch
new file mode 100644
index 0000000..c73dd5e
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1287-soft_tap.patch.patch
@@ -0,0 +1,82 @@
+From eff39cde0d3cdd2afd5e1b4be5a8eb6cf195543e Mon Sep 17 00:00:00 2001
+From: Dima Kogan <dkogan@cds.caltech.edu>
+Date: Thu, 11 Sep 2008 20:38:55 +0800
+Subject: [PATCH] soft_tap.patch
+
+Hi all.
+
+I'm seeing a behavior in my freerunner where light taps on the
+touchscreen are not registered as clicks by the kernel even though the
+base hardware does report clicking events. I'm seeing the kernel
+generate extra "unclick" events in these cases. It looks like in the
+driver, an unclick event is processed before the click event, thus
+suppressing the click from ever being generated. I'm attaching a patch
+that addresses this. I'm now able to type much faster on the matchbox
+keyboard, even when using my fingertips instead of fingernails.
+
+Dima
+
+Signed-off-by: Dima Kogan <dkogan@cds.caltech.edu>
+---
+ 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 9fb95c1..fc1c500 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);
+ }
+--
+1.5.6.5
+