Add touchscreen filters

Add filter source code and add it to the defconfig.

Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/ts_filter_mean.h b/drivers/input/touchscreen/ts_filter_mean.h
new file mode 100644
index 00000000000..80f9b215dff
--- /dev/null
+++ b/drivers/input/touchscreen/ts_filter_mean.h
@@ -0,0 +1,28 @@
+#ifndef __TS_FILTER_MEAN_H__
+#define __TS_FILTER_MEAN_H__
+
+#include "ts_filter.h"
+
+/*
+ * Touchscreen filter.
+ *
+ * mean
+ *
+ * (c) 2008,2009
+ *     Andy Green <andy@warmcat.com>
+ *     Nelson Castillo <arhuaco@freaks-unidos.net>
+ */
+
+/* Configuration for this filter. */
+struct ts_filter_mean_configuration {
+	/* Number of points for the mean. */
+	int length;
+
+	/* Generic filter configuration. */
+	struct ts_filter_configuration config;
+};
+
+/* API functions for the mean filter */
+extern const struct ts_filter_api ts_filter_mean_api;
+
+#endif /* __TS_FILTER_MEAN_H__ */