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975cb11ca1
Per USB PD specification even custom VDMs should fall under the alternate mode discovery policy. CL lays ground work for GFU (Google Flash Update) alternate mode. Signed-off-by: Todd Broch <tbroch@chromium.org> BRANCH=samus BUG=chrome-os-partner:31192,chrome-os-partner:31193 TEST=manual, See samus_pd console correctly discover another SVID & subsequent mode. (0) == Discover identity w/ two SVIDs 0xff01 & 0x11d1 (1) == Discover mode for 0xff01 (2) == Discover mode for 0x18d1 console output -------------- SVDM/5 [1] ff008041 2c0018d1 00000000 50110001 1100000b [4070.286120 DONE] (0) SVDM/2 [2] ff008042 ff0118d1 00000000 [4070.289353 DONE] (1) SVDM/2 [3] ff018043 00001085 [4070.292575 DONE] (2) SVDM/2 [3] 18d18043 00000001 [4070.295798 DONE] SVDM/1 [4] ff018144 [4070.298844 DONE] SVDM/2 [16] ff018150 00000002 [4070.302261 DONE] SVDM/1 [17] ff018151 > pe 0 dump IDENT: [ID Header] 2c0018d1 :: AMA, VID:18d1 [Cert Stat] 00000000 [2] 50110001 [3] 1100000b SVID[0]: ff01 MODES: [1] 00001085 SVID[1]: 18d1 MODES: [1] 00000001 MODE[1]: svid:ff01 caps:00001085 Change-Id: Ifab79a6fc6770a6f4bd7690ca8e6723503264137 Reviewed-on: https://chromium-review.googlesource.com/231833 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org> Commit-Queue: Todd Broch <tbroch@chromium.org> Tested-by: Todd Broch <tbroch@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit