target/linux/s3c24xx/files-2.6.30/include/linux/touchscreen/ts_filter_group.h

   1 #ifndef __TS_FILTER_GROUP_H__
   2 #define __TS_FILTER_GROUP_H__
   3
   4 #include "ts_filter.h"
   5
   6 /*
   7  * Touchscreen group filter.
   8  *
   9  * Copyright (C) 2008,2009 by Openmoko, Inc.
  10  * Author: Nelson Castillo <arhuaco@freaks-unidos.net>
  11  *
  12  */
  13
  14 struct ts_filter_group_configuration {
  15         /* Size of the filter. */
  16         int length;
  17         /*
  18          * If two points are separated by this distance or less they
  19          * are considered to be members of the same group.
  20          */
  21         int close_enough;
  22         /* Minimum allowed size for the biggest group in the sample set. */
  23         int threshold;
  24         /*
  25          * Number of times we try to get a group of points with at least
  26          * threshold points.
  27          */
  28         int attempts;
  29
  30         /* Generic filter configuration. */
  31         struct ts_filter_configuration config;
  32 };
  33
  34 extern const struct ts_filter_api ts_filter_group_api;
  35
  36 #endif