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These commands (pdgetmode & pdsetmode) will provide host with ability to identify USB-PD alternate mode devices SVIDs and supported modes. It will also allow host to set mode on devices which support multiple alternate modes. Signed-off-by: Todd Broch <tbroch@chromium.org> BRANCH=samus BUG=chrome-os-partner:33946 TEST=manual Plug hoho/dingdong into samus at port <port> ectool --name cros_pd pdgetmode <port> *SVID:0xff01 *0x00001085 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 SVID:0x18d1 0x00000001 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 ectool --name cros_pd pdsetmode <port> 0x18d1 1 ectool --name cros_pd pdgetmode <port> SVID:0xff01 0x00001085 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 *SVID:0x18d1 *0x00000001 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 ectool --name cros_pd infopddev <port> Port:1 DevId:4.1 Hash: 0x042cc79c 0x30cc12e3 0xe27a36e5 0x3f7eba5f 0x053c91d1 Port:1 ptype:5 vid:0x18d1 pid:0x5010 Also from samus_pd console see proper result for 'typec <port>' typec 1 Port C1: CC1 178 mV CC2 427 mV (polarity:CC2) No Superspeed connection Also visually inspect packets via twinkie. Change-Id: I4e442bcb39ec1ff3cb6efff196a660819077ad76 Reviewed-on: https://chromium-review.googlesource.com/231834 Tested-by: Todd Broch <tbroch@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit