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path: root/include/usb_mux.h
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* kevin / gru: Notify host of HPD IRQ statusShawn Nematbakhsh2016-08-101-0/+4
| | | | | | | | | | | | | | | | | | If an HPD IRQ event is seen, make note of it and keep the status set until informing the host. BUG=chrome-os-partner:55925 BRANCH=None TEST=Manual on kevin, trigger HPD event, verify that event bit is set in reply to first host command and not subsequent host commands. Change-Id: I0900a683dcb344d5d4d03a1fa6e3d8de913597b2 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/366990 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Chris Zhong <zyw@rock-chips.com> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Guenter Roeck <groeck@chromium.org>
* usb_mux: Add support for host-controlled 'virtual' USB muxShawn Nematbakhsh2016-06-241-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | For designs where the host SOC is responsible for setting the USB-C SS mux, the EC must track the desired mux state and inform the host when the desired state changes. Then, the host must ask the EC for the new desired state and set the mux accordingly. BUG=chrome-os-partner:52639 BRANCH=None TEST=Manual on gru with subsequent commit. Attach USB dongle in port 1 and DP dongle in port 0, then verify `ectool usbpdmuxinfo` output: Port 0: DP Port 1: USB Flip DP dongle and verify output changes: Port 0: DP INV Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: I6a99ce93a76c3197f9195cfaa25c5217d09aeb75 Reviewed-on: https://chromium-review.googlesource.com/355281 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
* amenia: Support DP alt mode of Type-C controller in amenia.li feng2016-06-141-0/+6
| | | | | | | | | | | | | | | BUG=none BRANCH=none TEST=On Amenia TR1.2, tested with HDMI to Type-C dongle. Both Analogix and Parade ports have HDMI on extended display. Change-Id: Ifb95c289019063a8a24d135e3b3a09cb4d446210 Signed-off-by: Divya Sasidharan <divya.s.sasidharan@intel.com> Signed-off-by: li feng <li1.feng@intel.com> Reviewed-on: https://chromium-review.googlesource.com/348881 Commit-Ready: Li1 Feng <li1.feng@intel.com> Tested-by: Li1 Feng <li1.feng@intel.com> Reviewed-by: Shawn N <shawnn@chromium.org>
* tcpc: add support for TCPC with integrated high-speed muxesVincent Palatin2016-01-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The TCPCI specification defines ane optional register 18h 'CONFIG_STANDARD_OUTPUT' providing a standardized way of steering the high-speed muxes. Implement the feature as a usb_mux_driver, under the conditional flag CONFIG_USB_PD_TCPM_MUX. The USB PD port index should be set in the port_addr field of the 'usb_mux' structure. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=chrome-os-partner:49605 TEST=run pdeval-stm32f072 connected to a Parade PS8751 board and test USB/DP muxing. Change-Id: I7e5f0b8ec70b1910b2cff9d106514baca8c899e5 Reviewed-on: https://chromium-review.googlesource.com/322956 Commit-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
* usb_mux: Add a callback for board specific initDuncan Laurie2015-11-241-0/+9
| | | | | | | | | | | | | | | This adds a callback for board specific initialization that is called after the driver init function. This will allow a board to apply port-specific tuning (such as USB EQ settings) to the mux chip. BUG=chrome-os-partner:47074 BRANCH=none TEST=build and boot on chell Change-Id: Ib162f9a2c5239678c46b80e5517823b336f6b66c Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/313746 Reviewed-by: Shawn N <shawnn@chromium.org>
* usb_charger: cleanup: move setting usb 2 switches to usb_chargerAlec Berg2015-08-041-0/+1
| | | | | | | | | | | | | | Move function to set D+/D- switches from board directory to usb_charger module. BUG=none BRANCH=strago TEST=make -j buildall Change-Id: I5c5997c799cecea90448444863167af860a8f3e1 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/290421 Reviewed-by: Shawn N <shawnn@chromium.org>
* usb_mux: Add support for Parade PS8740 chipShawn Nematbakhsh2015-06-301-0/+1
| | | | | | | | | | | | | | | Initial support for Parade PS8740 Type-C redriving switch. BUG=chrome-os-partner:41696 TEST=Manual on Glados in subsequent commit. Verify set() and get() functions set and return consistent values. Verify that USB SS device functions when muxes are set to dock or USB. BRANCH=None Change-Id: Iedbe53cc76f30ecd969c2ca99a7377ed3b193729 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/282280 Reviewed-by: Alec Berg <alecaberg@chromium.org>
* usb_mux: Add driver interface for USB-C muxesShawn Nematbakhsh2015-06-301-0/+116
In preparation for adding support for additional USB-C mux chips, add a new high-level USB-C mux interface usb_mux.c. usb_mux functions are now called from pd code instead of board-level functions. usb_mux calls down into a mux chip-specific driver (currently pi3usb30532) or board-specific drivers which toggle GPIOs (for legacy boards). BUG=chrome-os-partner:41696 TEST=Manual on Glados in subsequent commit. Verify set() and get() functions set and return consistent values. Verify that USB SS device functions when muxes are set to dock or USB. Also, verify that DP dongle and USB SS device are functional on both PD ports on samus_pd. BRANCH=None Change-Id: Ib6477f489310f3be1430585ea09fea26f57e3752 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/281435 Reviewed-by: Alec Berg <alecaberg@chromium.org>
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