diff options
| author | Vic Yang <victoryang@chromium.org> | 2014-10-14 14:07:03 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-10-18 07:38:22 +0000 |
| commit | 5d4846ee520b6f1e743a6e58537a2ab2fac0cafc (patch) | |
| tree | def9472483cc0a51985b030169a6af30820ef780 /include/gesture.h | |
| parent | 18cc8ab5fdb9f564397b7d8a10234606964e3cee (diff) | |
| download | chrome-ec-5d4846ee520b6f1e743a6e58537a2ab2fac0cafc.tar.gz | |
plankton: Implement cable flip
When the cable flip button is pressed, instead of only flipping on
Plankton side, we should also signal the port partner to flip. This is
done by sending a custom VDM. Upon receiving the flip VDM, the port
partner is responsible of flipping the DP/USB polarity.
Note that the "flip" here only affects the superspeed lanes. The CC
lines polarity is not changed. We need this for factory test automation,
and this "flip" function should only be used for testing purpose as it
clearly violates the USB PD spec and it only works on devices that
accept the custom flip VDM.
BRANCH=Samus
BUG=chrome-os-partner:32163
TEST=COnnect Plankton and Ryu. Press the button on Plankton and make
sure the polarity GPIOs on Ryu are negated.
Change-Id: I7ee5ea70067de4f422a7478623fe7fe8d3724372
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223325
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'include/gesture.h')
0 files changed, 0 insertions, 0 deletions