diff options
Diffstat (limited to 'drivers/input/touchscreen/ts_filter.h')
-rw-r--r-- | drivers/input/touchscreen/ts_filter.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/drivers/input/touchscreen/ts_filter.h b/drivers/input/touchscreen/ts_filter.h deleted file mode 100644 index 632e5fb3f4e..00000000000 --- a/drivers/input/touchscreen/ts_filter.h +++ /dev/null @@ -1,74 +0,0 @@ -#ifndef __TS_FILTER_H__ -#define __TS_FILTER_H__ - -/* - * Touchscreen filter. - * - * (c) 2008,2009 Andy Green <andy@warmcat.com> - */ - -#include <linux/platform_device.h> - -#define MAX_TS_FILTER_COORDS 3 /* X, Y and Z (pressure). */ - -struct ts_filter; -struct ts_filter_configuration; - -/* Operations that a filter can perform. */ - -struct ts_filter_api { - /* Create the filter - mandatory. */ - struct ts_filter * (*create)( - struct platform_device *pdev, - const struct ts_filter_configuration *config, - int count_coords); - /* Destroy the filter - mandatory. */ - void (*destroy)(struct ts_filter *filter); - /* Clear the filter - optional. */ - void (*clear)(struct ts_filter *filter); - - - /* - * The next three API functions only make sense if all of them are - * set for a filter. If a filter has the next three methods then - * it can propagate coordinates in the chain. - */ - - /* - * Process the filter. - * It returns non-zero if the filter reaches an error. - */ - int (*process)(struct ts_filter *filter, int *coords); - /* - * Is the filter ready to return a point? - * Please do not code side effects in this function. - */ - int (*haspoint)(struct ts_filter *filter); - /* - * Get a point. - * Do not call unless the filter actually has a point to deliver. - */ - void (*getpoint)(struct ts_filter *filter, int *coords); - - /* - * Scale the points - optional. - * A filter could only scale coordinates. - */ - void (*scale)(struct ts_filter *filter, int *coords); -}; - -/* - * Generic filter configuration. Actual configurations have this structure - * as a member. - */ -struct ts_filter_configuration { -}; - -struct ts_filter { - /* Operations for this filter. */ - const struct ts_filter_api *api; - /* Number of coordinates to process. */ - int count_coords; -}; - -#endif |