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| author | Hans de Goede <hdegoede@redhat.com> | 2016-07-15 14:05:29 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-07-15 14:50:53 -0700 |
| commit | ed7c9870c9bc6ca50dc0d271a301410bc894f4b9 (patch) | |
| tree | 06501c64473ffba176cc2746a7ea76e0cbf1afe3 /include/linux/input | |
| parent | 345ded8ef489a888f6921c999f872848c96b5af8 (diff) | |
| download | lwn-ed7c9870c9bc6ca50dc0d271a301410bc894f4b9.tar.gz lwn-ed7c9870c9bc6ca50dc0d271a301410bc894f4b9.zip | |
Input: of_touchscreen - add support for inverted / swapped axes
Extend touchscreen_parse_properties() with support for the
touchscreen-inverted-x/y and touchscreen-swapped-x-y properties and
add touchscreen_set_mt_pos() and touchscreen_report_pos() helper
functions for storing coordinates into a input_mt_pos struct, or
directly reporting them, taking these properties into account.
This commit also modifies the existing callers of
touchscreen_parse_properties() to pass in NULL for the new third
argument, keeping the existing behavior.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/linux/input')
| -rw-r--r-- | include/linux/input/touchscreen.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/linux/input/touchscreen.h b/include/linux/input/touchscreen.h index c91e1376132b..09d22ccb9e41 100644 --- a/include/linux/input/touchscreen.h +++ b/include/linux/input/touchscreen.h @@ -10,7 +10,26 @@ #define _TOUCHSCREEN_H struct input_dev; +struct input_mt_pos; -void touchscreen_parse_properties(struct input_dev *dev, bool multitouch); +struct touchscreen_properties { + unsigned int max_x; + unsigned int max_y; + bool invert_x; + bool invert_y; + bool swap_x_y; +}; + +void touchscreen_parse_properties(struct input_dev *input, bool multitouch, + struct touchscreen_properties *prop); + +void touchscreen_set_mt_pos(struct input_mt_pos *pos, + const struct touchscreen_properties *prop, + unsigned int x, unsigned int y); + +void touchscreen_report_pos(struct input_dev *input, + const struct touchscreen_properties *prop, + unsigned int x, unsigned int y, + bool multitouch); #endif |