diff options
| author | Alec Berg <alecaberg@chromium.org> | 2014-03-14 09:27:31 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-03-27 18:44:14 +0000 |
| commit | 242f1957714153075e2eb9d5541923d28f05ec7c (patch) | |
| tree | 72e26d49e5e8c063a8f8df864d10f98bc741016c /include/keyboard_scan.h | |
| parent | 6d745d8fd3016c6dc1b17ad1cd9b21ce65671a5a (diff) | |
| download | chrome-ec-242f1957714153075e2eb9d5541923d28f05ec7c.tar.gz | |
rambi: glimmer: Disable key scanning in suspend when lid is open
Added ability to disable the keyboard to wake from suspend when the lid
is outside a certain angle range. This has been added to glimmer by
defining CONFIG_LID_ANGLE_KEY_SCAN in its board.h.
Also modified the lid angle calculation to include a reliability
flag which can be used to tell when the hinge aligns too closely
with gravity and the lid angle value is unreliable.
BUG=none
BRANCH=rambi
TEST=Tested on a glimmer:
In S3, verified that when the lid is open past ~180 deg, the keyboard
does not wake the machine. Also verified that if you align hinge with
gravity, the keyboard enabled/disabled status remains the same (since
we can't actually trust the lid angle value).
Change-Id: I45b2c7c3c4bbcae61d3a0f8b5baa461ab8dabfb0
Original-Change-Id: If1a1592d259902d38941936961854b81b3a75b95
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190061
Reviewed-on: https://chromium-review.googlesource.com/191612
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'include/keyboard_scan.h')
| -rw-r--r-- | include/keyboard_scan.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/keyboard_scan.h b/include/keyboard_scan.h index bc956cc685..8359cbd174 100644 --- a/include/keyboard_scan.h +++ b/include/keyboard_scan.h @@ -84,6 +84,11 @@ void keyboard_scan_enable(int enable); static inline void keyboard_scan_enable(int enable) { } #endif +/** + * Returns if keyboard matrix scanning is enabled/disabled. + */ +int keyboard_scan_is_enabled(void); + #ifdef CONFIG_KEYBOARD_SUPPRESS_NOISE /** * Indicate to audio codec that a key has been pressed. |