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path: root/driver/usb_mux/it5205.c
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* USB MUX: Generalize mux ACKDiana Z2021-08-141-1/+5
| | | | | | | | | | | | | | | | | | | | Currently, only the virtual mux driver uses the mux ACK feature, but the actual wait for the host command ACK is a part of the usb_mux general code. Generalize this mux ACK wait so it's available if needed in the future for more muxes. Additionally, moving this wait out of the mux set will allow us to lock the muxes intelligently between tasks, without keeping the muxes locked during the inactive ACK wait. BRANCH=None BUG=b:172222942,b:186777984 TEST=tast typec.Mode*.manual on voxel Signed-off-by: Diana Z <dzigterman@chromium.org> Change-Id: I61a043425a482cc6f3170548c888d91ec20c2a82 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3078411 Reviewed-by: Keith Short <keithshort@chromium.org>
* usb_mux/it5205h: implement SBU controlTing Shen2020-09-151-2/+35
| | | | | | | | | | | | | BUG=b:167499422 TEST=able to trigger sbu interrupt on reworked asurada BRANCH=none Signed-off-by: Ting Shen <phoenixshen@google.com> Change-Id: I457596ee938790736ebdd5bfbd22e13831d715b4 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2402598 Reviewed-by: Eric Yilun Lin <yllin@chromium.org> Commit-Queue: Ting Shen <phoenixshen@chromium.org> Tested-by: Ting Shen <phoenixshen@chromium.org>
* usb_mux: retimer: mux as chained mux and retimerDenis Brockus2020-02-281-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes retimers appear as generic muxes. By allowing a chain of muxes they can be stacked up to the new configurations that zork requires and will continue to work as they did before on configurations that only have a single mux. The code used to have two different arrays, 1) muxes and 2) retimers. On one of the zork configurations the processor MUX stopped being the primary mux and the retimer took its place. In a different configuration of that same platform it left the primary and secondary alone but the mux_set FLIP operation had to be ignored. Since the same interfaces needed to be available for both it stopped making sense to have two different structures and two different methods of handling them. This consolodates the two into one. The platforms that do not have retimers, this change will not make any difference. For platforms like zork, it will remove the retimers and make them chained muxes. So testing on trembyle makes sense to verify, BUG=b:147593660 BRANCH=none TEST=verify USB still works on trembyle Change-Id: I286cf1e302f9bd3dd7e81098ec08514a2a009fe3 Signed-off-by: Denis Brockus <dbrockus@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2066794 Commit-Queue: Jett Rink <jettrink@chromium.org> Reviewed-by: Edward Hill <ecgh@chromium.org> Reviewed-by: Jett Rink <jettrink@chromium.org>
* usb_mux: cleanup: Replace mux state enums with ec_command bit flagVijay Hiremath2020-01-281-7/+7
| | | | | | | | | | | BUG=b:145796172 BRANCH=none TEST=make buildall -j Change-Id: Ie4ffaf208745764262931501f0dff77b525a4e59 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2017569 Reviewed-by: Jett Rink <jettrink@chromium.org>
* Remove __7b, __8b and __7bfDenis Brockus2019-07-201-2/+2
| | | | | | | | | | | | | | | | | | | The extentions were added to make the compiler perform most of the verification that the conversion was being done correctly to remove 8bit addressing as the standard I2C/SPI address type. Now that the compiler has verified the code, the extra extentions are being removed BUG=chromium:971296 BRANCH=none TEST=make buildall -j TEST=verify sensor functionality on arcada_ish Change-Id: I36894f8bb9daefb5b31b5e91577708f6f9af2a4f Signed-off-by: Denis Brockus <dbrockus@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1704792 Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
* Use 7bit I2C/SPI slave addresses in ECDenis Brockus2019-07-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Opt for 7bit slave addresses in EC code. If 8bit is expected by a driver, make it local and show this in the naming. Use __7b, __7bf and __8b as name extensions for i2c/spi addresses used in the EC codebase. __7b indicates a 7bit address by itself. __7bf indicates a 7bit address with optional flags attached. __8b indicates a 8bit address by itself. Allow space for 10bit addresses, even though this is not currently being used by any of our attached devices. These extensions are for verification purposes only and will be removed in the last pass of this ticket. I want to make sure the variable names reflect the type to help eliminate future 7/8/7-flags confusion. BUG=chromium:971296 BRANCH=none TEST=make buildall -j Change-Id: I2fc3d1b52ce76184492b2aaff3060f486ca45f45 Signed-off-by: Denis Brockus <dbrockus@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1699893 Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
* cleanup: Segregate USB MUX related drivers in usb_mux folderVijay Hiremath2019-07-171-0/+135
BUG=none BRANCH=none TEST=make buildall -j Change-Id: If44a363d1288cbfabe5c6545e550f2b8fc623227 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1700793 Reviewed-by: Jett Rink <jettrink@chromium.org>