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* pd: move non-phy layer config out of usb_pd_config.hAlec Berg2015-05-271-8/+7
| | | | | | | | | | | | | | | | | | | | | Move parts of usb_pd_config.h that are not part of the phy layer out of usb_pd_config.h and into board.h. This cleans up the division between the TCPC and TCPM as only the TCPC needs to use usb_pd_config.h. Also cleans up the use of the CC detection voltage thresholds by creating standard macros to use based on Rp strength for the board. BUG=none BRANCH=none TEST=make -j buildall Change-Id: I946cceb38bea8233095b8a4b287102bb8a3a296d Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/270337 Reviewed-by: Todd Broch <tbroch@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pd: implement new type-C connect state machineAlec Berg2015-01-101-11/+28
| | | | | | | | | | | | | | | | | | | | | Implement the new type-C connect state machine which removes lock and hold times and adds a debounce time to make sure CC lines settle before going into the attached state. This also adds detection of accessories, but doesn't do anything when an accessory is detected. BUG=chrome-os-partner:33680 BRANCH=samus TEST=test samus connected zinger and samus connected to samus. make sure that the connection is always formed. also tested with a third party with old state machine implementation and formed a connection every time. Change-Id: I91a7a6031bc35082cc19d7697142e4aa92ef46f2 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/238210 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pd: check for collisions before transmittingAlec Berg2014-12-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added check for collision just before transmitting on CC line. To check for collision, RX monitoring is left on all the time (except when in the act of receiving or transmitting, or in between receiving and sending a goodCRC), and a simple check for RX transmission started is used to see if the CC line is idle or not. RX monitoring is also changed to only trigger on 3 edges within 20us, as per the PD spec. When a collision is detected by seeing that CC is not idle, the transmitting packet is dropped. BUG=chrome-os-partner:30135 BRANCH=samus TEST=load onto samus and zinger. make sure we negotiate and make sure custom VDMs succeed. enabled pings and made sure we stay alive with pings for a few min. Also added code to pd_rx_handler to toggle a test point on EVT board to verify the timing of when we get RX interrupts: Change-Id: I22d172163319437d3d901e019eda79d4d592f6b8 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/226118 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pd: for request message, add operational and max currentAlec Berg2014-11-101-1/+3
| | | | | | | | | | | | | | | | | | For request message, add the operational and max current for each board. If the requested power is less than the operational power required, then set mismatch bit. BUG=none BRANCH=samus TEST=make buildall. load onto samus, plug in zinger and see that request 20V, operational current 3000mA and max current of 3000mA. Change-Id: I4df45d88b7e060f66ff5b806f6fe30803f1afcf7 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/227393 Reviewed-by: Todd Broch <tbroch@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pd: remove redundant 5V source PDOsAlec Berg2014-11-061-1/+1
| | | | | | | | | | | | | | | | Remove redundant 5V source PDOs in source cap packet. We only need one 5V advertisement with the maximum current that we can provide. BUG=none BRANCH=samus TEST=make buildall Change-Id: I94a01813787eb92fafbf600dcbbc8a2f0aa69e2b Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/227392 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org>
* pd: samus: add support for power swap commandAlec Berg2014-11-061-5/+7
| | | | | | | | | | | | | | | | Add support for PR_SWAP command as per PD specification. BUG=chrome-os-partner:28343 BRANCH=samus TEST=test by connecting two samus' and running 'pd 1 swap power' from console. verified that both sides switch power roles by observing console output. also tested against third party devices. Change-Id: I0e8738b544de9f9a4348250630e67d0fefb4486d Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/225559 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pd: VDM Alternate mode support.Todd Broch2014-10-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Successfully communicate SVDM for discovery (identity, svids, modes) and enter mode. Still need to: - Add same functionality on when power role is sink too. - determine what connected events would require exit mode. - do proper cleanup on disconnect. - implement real display port 'enter' mode for samus_pd - test & cleanup Additionally the USB Billboard class functionality needs to be added but will likely do that in a separate CL. BRANCH=none BUG=chrome-os-partner:28342 TEST=manual, From fruitpie, [Image: RO, fruitpie_v1.1.2263-d79140d-dirty 2014-09-29 17:44:15 tbroch@brisket.mtv.corp.google.com] [0.000383 Inits done] C0 st2 Console is enabled; type HELP for help. > [0.250551 USB PD initialized] pd dualrole source C0 st8 > [8.366335 PD TMOUT RX 1/1] RX ERR (-1) [8.478308 PD TMOUT RX 1/1] RX ERR (-1) [8.590280 PD TMOUT RX 1/1] RX ERR (-1) C0 st9 Switch to 5000 V 3000 mA (for 3000/3000 mA) C0 st10 C0 st11 C0 st12 8.867593] SVDM/4 [1] ff008081 340018d1 00000000 17000008 8.867906] DONE 8.871006] SVDM/2 [2] ff008082 ff010000 8.871224] DONE 8.875092] SVDM/7 [3] ff018083 00100081 00000000 00000000 00000000 00000000 00000000 Entering mode w/ vdo = 00100081 8.875492] DONE 8.878435] SVDM/1 [4] ff018144 8.878612] DONE > pe 0 dump SVID[0]: ff01 [0] 00100081 [1] 00000000 [2] 00000000 [3] 00000000 [4] 00000000 [5] 00000000 MODE[0]: svid:ff01 mode:1 caps:00100081 From hoho, [Image: RO, hoho_v1.1.2263-d79140d-dirty 2014-09-29 17:54:59 tbroch@brisket.mtv.corp.google.com] [0.000375 Inits done] C0 st2 Console is enabled; type HELP for help. > [0.250542 USB PD initialized] C0 st3 [0.264637 PD TMOUT RX 1/1] RX ERR (-1) Request [1] 5V 3000mA C0 st4 C0 st5 C0 st6 0.487451] SVDM/1 [1] ff008001 0.487628] DONE 0.491190] SVDM/1 [2] ff008002 0.491346] DONE 0.494510] SVDM/1 [3] ff018003 0.494667] DONE 0.498777] SVDM/1 [4] ff018104 0.498934] DONE Change-Id: I5e2b7802c66b8aaad97e5120dca7a02820086bc1 Signed-off-by: Todd Broch <tbroch@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/219513 Reviewed-by: Alec Berg <alecaberg@chromium.org>
* Add back unit test for usb_pd"Vic Yang2014-10-041-0/+212
| | | | | | | | | | | | | | | | | | This is mostly the same as previous commits, but with increased delay. Previously, we have short delays (e.g. 3ms) which is too short and may cause instability. Now that we have slowed down the time when running unit tests and increased the delay, this shouldn't cause problems anymore. BUG=chrome-os-partner:31200 TEST=Repeatedly run multiple unit tests in parallel. BRANCH=Samus Change-Id: Ib55e3adc5fd27a8e233996b4799dab3cefd62318 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/220734 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Revert "Add back unit test for usb_pd"Vic Yang2014-08-151-204/+0
| | | | | | | | | | | | | | | | | This reverts commit cb7468744d8292590ddc4fb0a0b6ed7752b1490a. Apparently this test fails when running on a heavily loaded system. Revert this for now. BUG=chromium:402335,chrome-os-partner:31200 TEST=make buildall BRANCH=None Change-Id: I8b616d3915ee5c2f524530897758871cc0375d35 Reviewed-on: https://chromium-review.googlesource.com/212582 Tested-by: Vic Yang <victoryang@chromium.org> Reviewed-by: Christopher Wiley <wiley@chromium.org> Commit-Queue: Vic Yang <victoryang@chromium.org>
* Add back unit test for usb_pdVic Yang2014-08-131-0/+204
| | | | | | | | | | | | | | Add back the test but only enable USB PD tasks for usb_pd test. This should ensure that we do not break existing tests. BUG=chrome-os-partner:31200,chromium:402335 TEST=make buildall BRANCH=None Change-Id: I4daa41a96a1067362b2c40a2a09fce733843bdff Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/211923 Reviewed-by: Alec Berg <alecaberg@chromium.org>
* Revert "Add unit test for usb_pd"Alec Berg2014-08-111-204/+0
| | | | | | | | | This reverts commit 0739074fbf735cffefdac7ff6d086084449f6493. Change-Id: I1889138e5a8d5bc22d3bac2e48afe6378a59542a Reviewed-on: https://chromium-review.googlesource.com/211773 Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org> Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
* Add unit test for usb_pdVic Yang2014-08-101-0/+204
Initial commit of usb_pd unit test. The test cases are very simple. We'll add more test cases in similar format. BUG=chrome-os-partner:31200 TEST=Pass usb_pd test BRANCH=None Change-Id: I9e3de5b2c032ee1d3670cde6d8227ce0378ae8a0 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/211643 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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