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path: root/src/ec/google/wilco/acpi/event.asl
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2019-02-25ec/google/wilco: Fix ACPI power status eventsDuncan Laurie
This change fixes the power status events for AC and battery events from the EC. The register that was being used is not returning the expected information. BUG=b:125472740 TEST=enable ACPI debug in the kernel and verify that AC and battery insert/remove are detected properly. Change-Id: I15f71fcf0ca6aa9438e951865787c9fc273792d8 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/31560 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-02-05ec/google/wilco: Add virtual button supportDuncan Laurie
Add an ACPI device that is compatible with the Intel Virtual Button kernel driver for reporting tablet mode state and various virtual button events that may come from the EC. This driver is used in Windows and in the Linux kernel at drivers/platform/x86/intel-vbtn.c Because of a check in the kernel driver it expects the board to define the SMBIOS enclosure type as convertible for the check at driver load time for tablet/laptop and dock/undock to work. The virtual tablet mode button will proxy the tablet mode state sent from the Sensor Hub to a SW_TABLET_MODE event in the kernel. The virtual power button is used during S0ix for the EC to wake the system with an SCI. There are separate press and release events which are sent for completeness, although the kernel driver will ignore the release event. BUG=b:73137291 TEST=Test that the power button can wake the system from S0ix. Also verify that the device is reported as laptop mode at boot. Change-Id: I0d5dc985a3cfb1d01ff164c4e67f17e6b1cdd619 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/31208 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-02-04ec/google/wilco: Add ACPI device for event interfaceDuncan Laurie
Add a separate ACPI device for the Wilco EC event interface so that the OS drivers can bind to it separately. Since the event handling is all done with ACPI and not mailbox calls this will be implemented as a standard acpi_driver in the kernel. BUG=b:119046283 TEST=veriy device exists in DSDT Change-Id: I5259a926fb6d5faea835bcdefa12f0184c5adf4a Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/31204 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-12-04ec/google/wilco: Guard DTPF with ifdefDuncan Laurie
There is a dependency issue with the EC DPTF code accessing methods that are external, but once the mainboard includes the relevant code they become internal and the current version of IASL used by jenkins will fail to compile it. Until the new IASL is deployed everywhere wrap the EC DPTF code and expect that the mainboard will explicitly enable it. Change-Id: I612ad8f86d424060ca0303d267d7c2915c760173 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/30036 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-12-04ec/google/wilco/acpi: Add DPTF supportDuncan Laurie
Add the support needed for DPTF. This includes the methods to write trip point values, read temperatures, and handle events. This was tested on a sarien board by inspecting AML debug output with the kernel while monitoring temperatures and trip points in sysfs and controlling temperatures with a fan to ensure that when a trip point is crossed an SCI is generated and the event is handled properly. Change-Id: I8d8570d176c0896fa709a6c782b319f58d3c1e52 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/29761 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-12-04ec/google/wilco: Fix extended event handlingDuncan Laurie
Extended events will be handled by the OS kernel driver, but that driver needs a method exposed by ACPI to read the event data from the EC and into a buffer. Tested by generating a hotkey event and reading the buffer from the Linux kernel driver with acpi_evaluate_object(). Change-Id: Ic8510e38d777a5dd31a5237867313efefeb2b48e Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/29674 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-31ec/google/wilco: Add ACPI EC event handlersDuncan Laurie
Add methods to handle ACPI EC events at runtime. Currently only some common events are handled like lid switch and battery info, and the event status is printed for debug on other events. Change-Id: Ic0bd070940c8a2dfa6a251f3464301418bdb69c1 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/29124 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>