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* TCPMv2: Add support for linear re-driver cablesAyushee2020-11-061-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The linear re-driver cables enumerate as passive cables in the Discover mode SOP' response from the cable. But they have Active/Passive bit (B25) in the discover mode SOP' response set. Hence, if the cable is LRD, the port enters Thunderbolt mode SOP' before entering USB and it also sets the cable as active in the mux and retimer setting. USB4 PD flow for LRD cables: Is Discover mode SOP' B25? ----- N ----- Enter USB4 SOP with Gen 2 cable speed | y | Enter TBT SOP' | Enter USB4 SOP as per cable speed. TBT PD flow for LRD cables: Is Discover mode SOP' B25? ----- N ----- Enter TBT SOP | y | Enter TBT SOP' | Enter TBT SOP This CL also updates the retimer setting and Enter USB Data object for USB4 according to the type of cable detected (LRD/Active/passive) BUG=b:156749387 BRANCH=None TEST=With Linear re-driver cable, 1. Able to enter USB4 mode 2. Able to enter Thunderbolt mode 3. Able to exit and re-enter USB4 on reboot 4. Able to exit and re-enter Thunderbolt mode on reboot Change-Id: Ie5258f792e13a205dea71fc9f06b1d8987ec9194 Signed-off-by: Ayushee <ayushee.shah@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2470209 Reviewed-by: Tanu Malhotra <tanu.malhotra@intel.com> Reviewed-by: Abe Levkoy <alevkoy@chromium.org> Commit-Queue: Abe Levkoy <alevkoy@chromium.org>
* TCPMv2: Correct Enter Mode TBT payloadAyushee2020-10-211-15/+27
| | | | | | | | | | | | | | | | | | | | | | | According to Type-C ENGINEERING CHANGE NOTICE (ECN) "USB Type-C ECN Thunderbolt 3 Compatibility Updates for the document fix published by USB-IF, For Enter mode Thunderbolt payload, B25 - Active_Passive bit B24 - Thunderbolt Adapter This CL corrects setting B24 and B25 and sets lrx_comm(23), retimer_type(22), tbt_cable(21) irrespective of the cable speed. BUG=b:148534741 BRANCH=None TEST=Able to enter into Thunderbolt mode with Active and Passie cable Signed-off-by: Ayushee <ayushee.shah@intel.com> Change-Id: I7fb29bea972f23ee0f87ee27ddcc1a50ce2d9a69 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2481933 Reviewed-by: Vijay P Hiremath <vijay.p.hiremath@intel.com> Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
* TBT: Update the TBT3 Compatibility ECN info published by USB-IFVijay Hiremath2020-08-261-3/+4
| | | | | | | | | | | | | | | | | | | | | | This CL updates the TBT3 VDO table with the TBT3 Compatibility ECN info published by USB-IF. In the "Universal Serial Bus Type-C Cable and Connector Specification Release 2.0, August 2019" document, Table F-10 TBT3 Device Discover Mode VDO Responses B16 - TBT2 Legacy Adapter & TBT3 Adapter are swapped Correct information is published in the USB Type-C ENGINEERING CHANGE NOTICE (ECN) document "USB Type-C ECN Thunderbolt 3 Compatibility Updates.pdf" with the Title: Thunderbolt 3 Compatibility Updates. BUG=b:147375157 BRANCH=none TEST=make buildall -j Change-Id: If619db58a97b7bfed71c105395ba5b8063d066cd Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2373325 Reviewed-by: Ayushee Shah <ayushee.shah@intel.com> Reviewed-by: Keith Short <keithshort@chromium.org> Commit-Queue: Keith Short <keithshort@chromium.org>
* BB retimer: Add 'vPro_Dock_Detect/DP_Overdrive' bitAyushee2020-06-031-6/+11
| | | | | | | | | | | | | | | | | For DFP, if SOP discover SVID supports Thunderbolt-Compat mode then, vPro_Dock_Detect/DP_Overdrive is set according to discover mode SOP response. Ref: Burnside Bridge spec Table 13: Connection state register BUG=b:152544514 BRANCH=None TEST=make buildall -j Signed-off-by: Ayushee <ayushee.shah@intel.com> Change-Id: I7a53396725052a4dfa12e934919c2e1d601c8949 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2153825 Reviewed-by: Keith Short <keithshort@chromium.org> Reviewed-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
* TBT3: Correct TBT Adapter type in Device Discover Mode VDO ResponsesVijay Hiremath2020-01-101-3/+7
| | | | | | | | | | | | | | | Corrected the TBT Adapter bits that are swapped in the "USB Type-C cable and connector specification, Release 2.0" BUG=b:146626829 BRANCH=none TEST=Verified that all TBT3 docking stations present "TBT Adapter" bit 0 Change-Id: I15202a35a00166914d67f3cc5de319d838e43c83 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1991855 Reviewed-by: Diana Z <dzigterman@chromium.org> Reviewed-by: Keith Short <keithshort@chromium.org>
* TCPMv1: Correct the TBT3 Discovery and Entry FlowVijay Hiremath2020-01-101-0/+255
Ref: USB Type-C Cable and Connector Specification 2.0 F.2 TBT3 Discovery and Entry Flow - Corrected the TBT3 Discovery flow - Corrected the TBT3 Entry Flow - Enabled the Active cable TBT3 mode entry - Refactored TBT & Cable VDO code on TCPMv1 so that same VDO structures can be used for TCPMv2 - Corrected getting the cable version - Cleaned up the code for super speed cable detection BUG=b:146006708, b:140643923, b:147134610 BRANCH=none TEST=Make buildall -j Able to detect Thunderbolt-compatible devices on TGLRVP Change-Id: I65f82e241d0cc2187050913e7d16942fdaa0ebd4 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1981276 Reviewed-by: Diana Z <dzigterman@chromium.org>
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