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path: root/include/usb_dp_alt_mode.h
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* tcpm: Move tcpm.h into an include directorySimon Glass2020-12-221-1/+1
| | | | | | | | | | | | | | | | | | This header file is used from quite a few files, relying on the EC build system to find includes in the driver/tcpm directory. For Zephyr we don't want to add that as an include. It makes more sense for header files to be in an include directory, so move it and fix up the users. BUG=b:175434113 BRANCH=none TEST=build Zephyr and ECOS on volteer Signed-off-by: Simon Glass <sjg@chromium.org> Change-Id: I5851914b1a7d3fdc1ba911c0fbe9046afbaf6f5d Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2597985 Reviewed-by: Keith Short <keithshort@chromium.org>
* various: Fix spellingAbe Levkoy2020-10-221-2/+2
| | | | | | | | | | | | | weather -> whether BUG=none TEST=make buildall BRANCH=none Signed-off-by: Abe Levkoy <alevkoy@chromium.org> Change-Id: I600571f289f01bdc474f8dd02787ad0afab19134 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2490723 Reviewed-by: Diana Z <dzigterman@chromium.org>
* TCPMv2: Avoid alt mode files from changing DPM statesAyushee2020-10-141-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | USB4 mode: Added a function to check if the USB4 entry is completed Thunderbolt mode: Added 2 flags TBT_RETRY_DONE, TBT_EXIT_DONE to track the Thunderbolt mode's exit and if retry is needed and a new function to check if if the Thunderbolt mode entry is completed DisplayPort mode: Added a function to check if the DisplayPort entry is completed BUG=b:169169804 BRANCH=None TEST=1. Able to enter alternate mode on hotplug and reboot 2. Able to exit the alternate mode on chipset transition and on DPM's exit mode request. Change-Id: I09662449143ad8d94b30ae102ed5ce79db852687 Signed-off-by: Ayushee <ayushee.shah@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2421425 Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
* TBT:Add support for exit mode SOP'/SOP'' on chipset transitionAyushee2020-10-141-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When chipset is transitioning to a new state or on sysjump, the EC re-negotiates to enter an alternate mode on booting up. This commit adds support for exiting Thunderbolt mode for SOP' and SOP'' for active cable on chipset transition and also moves all the alternate mode exit rotines to their respective files. It also delays deleting the SVID data until after the EXIT_MODE message has ACKed and avoids pd_dfp_exit_mode() from changing the alternate mode's internal states. This commit also makes sure that the mux is set to safe state before exiting the alternate mode and it is reconfigured according to the port's current data role on receiving ACK/NAK from the cable/port partner. BUG=b:151169925, b:159717794 BRANCH=none TEST=On reboot, able to exit and re-enter into DisplayPort mode, Thunderbolt mode with passive cable and thunderbolt mode with active cable. Change-Id: If1e48e9f31cd678e23fe89bd3494551b5d1a78f1 Signed-off-by: Ayushee <ayushee.shah@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2415082 Reviewed-by: Abe Levkoy <alevkoy@chromium.org> Reviewed-by: Diana Z <dzigterman@chromium.org>
* TCPMv2: Add common exit mode for all the alternate modesAyushee2020-07-171-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | When chipset is transitioning to a new state or on sysjump, the SOC re-negotiates to enter an alternate mode on booting up. This commit: 1. Adds a common DPM function to check for all the active alternate modes one at a time, construct the VDM and send the DPM request to exit the mode. 2. Marks thunderbolt mode as inactive in DFP's thunderbolt mode exit function. BUG=b:152235216 BRANCH=None TEST=Tested on volteer: 1. On connecting a DP dongle, able to enter into DP alternate mode on reboot 2. On connecting a Thunderbolt dock, able to enter into Thunderbolt mode on reboot Change-Id: I7da6a4b08cab9abb3446c0dafdc7c9e9378ef00e Signed-off-by: Ayushee <ayushee.shah@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2270877 Tested-by: Abe Levkoy <alevkoy@chromium.org> Reviewed-by: Abe Levkoy <alevkoy@chromium.org> Commit-Queue: Abe Levkoy <alevkoy@chromium.org>
* TCPMv2: Refactor DP mode to use a state machineAndrew McRae2020-06-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Refactor the DP alt mode handling to use a state machine to process the commands, ACKs and NAKs. Also add states to handle detecting a NAK on a DP mode enter command, and attempt to exit the mode and then retry. When a partner enters alt mode (e.g a monitor with DP alt mode), and the EC is reset or goes into recovery mode, the new negotiation will fail because the command to enter alt mode when the partner is already in that mode will fail with a NAK. BUG=b:159073520 TEST=Tested on duffy with a type-C monitor. BRANCH=none Signed-off-by: Andrew McRae <amcrae@google.com> Change-Id: I0b4506b17987ba71e51f019910db84b32a6da2c2 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2256620 Reviewed-by: Andrew McRae <amcrae@chromium.org> Commit-Queue: Andrew McRae <amcrae@chromium.org> Tested-by: Andrew McRae <amcrae@chromium.org>
* TCPMv2: Separate DPM and DP from PEAbe Levkoy2020-06-101-0/+66
Create separate modules representing DisplayPort (which decides whether and how we can set up the DP alt mode) and the Device Policy Manager (which decides whether we should). The end goal is to have essentially all code with DP-specific decisions or information in the DP module and all code with DPM-specific decisions or information in the DPM module. This will allow the PE to map as directly as practical to its behaviors defined in the PD spec. Essentially detach PE_DO_PORT_DISCOVERY from the rest of the PE state machine in preparation for deleting it. This change paves the way for 1) Allowing the AP to drive mode entry and 2) Allowing new alt modes to be supported via largely self-contained modules. BUG=b:155890173 TEST=Attach DP dongle; observe discovery and DP setup via Twinkie BRANCH=none Change-Id: Ie63a2e62d1ac6178722477dc53244898a04ef92f Signed-off-by: Abe Levkoy <alevkoy@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2203842 Reviewed-by: Diana Z <dzigterman@chromium.org>