target/linux/s3c24xx/patches-2.6.31/052-touchscreen_filter.patch

   1 From 2709e2e76025aa69d768a80d66ef1852dde7abc8 Mon Sep 17 00:00:00 2001
   2 From: Lars-Peter Clausen <lars@metafoo.de>
   3 Date: Tue, 21 Jul 2009 12:44:57 +0200
   4 Subject: [PATCH] 052-touchscreen_filter.patch
   5
   6 ---
   7  drivers/input/touchscreen/Kconfig  |   48 ++++++++++++++++++++++++++++++++++++
   8  drivers/input/touchscreen/Makefile |    5 +++
   9  2 files changed, 53 insertions(+), 0 deletions(-)
  10
  11 diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
  12 index 2bb711f..2b78885 100644
  13 --- a/drivers/input/touchscreen/Kconfig
  14 +++ b/drivers/input/touchscreen/Kconfig
  15 @@ -11,6 +11,54 @@ menuconfig INPUT_TOUCHSCREEN
  16
  17  if INPUT_TOUCHSCREEN
  18
  19 +menuconfig TOUCHSCREEN_FILTER
  20 +       boolean "Touchscreen Filtering"
  21 +       depends on INPUT_TOUCHSCREEN
  22 +       select TOUCHSCREEN_FILTER_GROUP
  23 +       select TOUCHSCREEN_FILTER_MEDIAN
  24 +       select TOUCHSCREEN_FILTER_MEAN
  25 +       select TOUCHSCREEN_FILTER_LINEAR
  26 +       help
  27 +         Select this to include kernel touchscreen filter support.  The filters
  28 +         can be combined in any order in your machine init and the parameters
  29 +         for them can also be set there.
  30 +
  31 +if TOUCHSCREEN_FILTER
  32 +
  33 +config TOUCHSCREEN_FILTER_GROUP
  34 +       bool "Group Touchscreen Filter"
  35 +       depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
  36 +       default Y
  37 +       help
  38 +         Say Y here if you want to use the Group touchscreen filter, it
  39 +         avoids using atypical samples.
  40 +
  41 +config TOUCHSCREEN_FILTER_MEDIAN
  42 +       bool "Median Average Touchscreen Filter"
  43 +       depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
  44 +       default Y
  45 +       help
  46 +         Say Y here if you want to use the Median touchscreen filter, it's
  47 +         highly effective if you data is noisy with occasional excursions.
  48 +
  49 +config TOUCHSCREEN_FILTER_MEAN
  50 +       bool "Mean Average Touchscreen Filter"
  51 +       depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
  52 +       default Y
  53 +       help
  54 +         Say Y here if you want to use the Mean touchscreen filter, it
  55 +         can further improve decent quality data by removing jitter
  56 +
  57 +config TOUCHSCREEN_FILTER_LINEAR
  58 +       bool "Linear Touchscreen Filter"
  59 +       depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
  60 +       default Y
  61 +       help
  62 +         Say Y here if you want to use the Linear touchscreen filter, it
  63 +         enables the use of calibration data for the touchscreen.
  64 +
  65 +endif
  66 +
  67  config TOUCHSCREEN_ADS7846
  68         tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
  69         depends on SPI_MASTER
  70 diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
  71 index 269814c..538e035 100644
  72 --- a/drivers/input/touchscreen/Makefile
  73 +++ b/drivers/input/touchscreen/Makefile
  74 @@ -41,3 +41,8 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)    += mainstone-wm97xx.o
  75  obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)      += zylonite-wm97xx.o
  76  obj-$(CONFIG_TOUCHSCREEN_W90X900)      += w90p910_ts.o
  77  obj-$(CONFIG_TOUCHSCREEN_S3C2410)      += s3c2410_ts.o
  78 +obj-$(CONFIG_TOUCHSCREEN_FILTER)       += ts_filter_chain.o
  79 +obj-$(CONFIG_TOUCHSCREEN_FILTER_GROUP) += ts_filter_group.o
  80 +obj-$(CONFIG_TOUCHSCREEN_FILTER_LINEAR)        += ts_filter_linear.o
  81 +obj-$(CONFIG_TOUCHSCREEN_FILTER_MEDIAN)        += ts_filter_median.o
  82 +obj-$(CONFIG_TOUCHSCREEN_FILTER_MEAN)  += ts_filter_mean.o
  83 --
  84 1.5.6.5
  85