Fix bug in tap gesture. When turning on tap detection, don't
clear the history circular array index. This was causing inconsitent
tap for battery recognition because the inner window sum of z-axis
data (sum_z_inner) was relying on subtracting out old historical
data and adding in the new data, but when the array index changed,
it was subtracting out the wrong old data. This really only came in
to play if there was significant z motion before the last wakeup.
BUG=none
BRANCH=samus
TEST=keep going to sleep and waking up and test that tap for
battery works every time.
Change-Id: I55e00c805d504dd6d257a81f2cd25fe384a53257
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/226591
Reviewed-by: Sheng-liang Song <ssl@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Move gesture to common directory, 1st step to be reused by
other board.
Cleanup motion_sense shutdown path.
BUG=chrome-os-partner:33102
TEST=Double tap still works on Samus
BRANCH=ToT
Change-Id: I0a3b38c4a7dbe95c27dcdebff04c1176aaf932d1
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/225235
Reviewed-by: Sheng-liang Song <ssl@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
