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cb663d93a2
Added a 'drp' option to the console command usbc_action that is used to toggle dualrole mode operation on and off. The default Plankton operation is not affected as this control is initialized to be disabled. When dualrole mode is enabled, then both CC lines are used and monitored. BRANCH=none BUG=chrome-os-partner:50074 TEST=Manual Tested Plankton connected to Samus. Verified that when dualrole mode is enabled that it can connect as both SRC and SNK. Tested with Type C cable initially connected and disconnected. In addition, verified that power role swaps behave correctly, and that when disabled, default Plankton operation is resumed. Change-Id: I60adfa25844a01a50ba45d5d92e17a3318f3e0a0 Signed-off-by: Scott <scollyer@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/325545 Commit-Ready: Scott Collyer <scollyer@chromium.org> Tested-by: Scott Collyer <scollyer@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly