HID: hid-magicmouse: Correct touch orientation direction

The magic trackpad and mouse both report touch orientation in opposite
direction to the bcm5974 driver and what is written in
Documents/input/multi-touch-protocol.txt. This patch reverts the
direction, so that all in-kernel devices with this feature behave the
same way.

Since no known application has been utilizing this information yet, it
seems appropriate also for stable.

Cc: stable@kernel.org
Cc: Michael Poole <mdpoole@troilus.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 698e645..318cc40 100644 (file)
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -258,7 +258,7 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
                input_report_abs(input, ABS_MT_TRACKING_ID, id);
                input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);
                input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);
-               input_report_abs(input, ABS_MT_ORIENTATION, orientation);
+               input_report_abs(input, ABS_MT_ORIENTATION, -orientation);
                input_report_abs(input, ABS_MT_POSITION_X, x);
                input_report_abs(input, ABS_MT_POSITION_Y, y);
 
@@ -397,7 +397,7 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
                input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0);
                input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0);
                input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0);
-               input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0);
+               input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0);
 
                /* Note: Touch Y position from the device is inverted relative
                 * to how pointer motion is reported (and relative to how USB