Root/target/linux/s3c24xx/patches-2.6.30/052-touchscreen_filter.patch

1--- a/drivers/input/touchscreen/Kconfig
2+++ b/drivers/input/touchscreen/Kconfig
3@@ -11,6 +11,54 @@ menuconfig INPUT_TOUCHSCREEN
4 
5 if INPUT_TOUCHSCREEN
6 
7+menuconfig TOUCHSCREEN_FILTER
8+ boolean "Touchscreen Filtering"
9+ depends on INPUT_TOUCHSCREEN
10+ select TOUCHSCREEN_FILTER_GROUP
11+ select TOUCHSCREEN_FILTER_MEDIAN
12+ select TOUCHSCREEN_FILTER_MEAN
13+ select TOUCHSCREEN_FILTER_LINEAR
14+ help
15+ Select this to include kernel touchscreen filter support. The filters
16+ can be combined in any order in your machine init and the parameters
17+ for them can also be set there.
18+
19+if TOUCHSCREEN_FILTER
20+
21+config TOUCHSCREEN_FILTER_GROUP
22+ bool "Group Touchscreen Filter"
23+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
24+ default Y
25+ help
26+ Say Y here if you want to use the Group touchscreen filter, it
27+ avoids using atypical samples.
28+
29+config TOUCHSCREEN_FILTER_MEDIAN
30+ bool "Median Average Touchscreen Filter"
31+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
32+ default Y
33+ help
34+ Say Y here if you want to use the Median touchscreen filter, it's
35+ highly effective if you data is noisy with occasional excursions.
36+
37+config TOUCHSCREEN_FILTER_MEAN
38+ bool "Mean Average Touchscreen Filter"
39+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
40+ default Y
41+ help
42+ Say Y here if you want to use the Mean touchscreen filter, it
43+ can further improve decent quality data by removing jitter
44+
45+config TOUCHSCREEN_FILTER_LINEAR
46+ bool "Linear Touchscreen Filter"
47+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
48+ default Y
49+ help
50+ Say Y here if you want to use the Linear touchscreen filter, it
51+ enables the use of calibration data for the touchscreen.
52+
53+endif
54+
55 config TOUCHSCREEN_ADS7846
56     tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
57     depends on SPI_MASTER
58--- a/drivers/input/touchscreen/Makefile
59+++ b/drivers/input/touchscreen/Makefile
60@@ -38,3 +38,8 @@ wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) +
61 obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
62 obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
63 obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
64+obj-$(CONFIG_TOUCHSCREEN_FILTER) += ts_filter_chain.o
65+obj-$(CONFIG_TOUCHSCREEN_FILTER_GROUP) += ts_filter_group.o
66+obj-$(CONFIG_TOUCHSCREEN_FILTER_LINEAR) += ts_filter_linear.o
67+obj-$(CONFIG_TOUCHSCREEN_FILTER_MEDIAN) += ts_filter_median.o
68+obj-$(CONFIG_TOUCHSCREEN_FILTER_MEAN) += ts_filter_mean.o
69

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