From aaac678e800dd9a6c0b2ca63d3cebfb3005628f8 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Fri, 1 Feb 2019 09:37:34 -0800 Subject: ec/google/wilco: Add ACPI device for event interface 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 Reviewed-on: https://review.coreboot.org/c/31204 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/ec/google/wilco/acpi/ec_dev.asl | 28 ++++++++++++++++++++++++++++ src/ec/google/wilco/acpi/event.asl | 18 +----------------- 2 files changed, 29 insertions(+), 17 deletions(-) (limited to 'src') diff --git a/src/ec/google/wilco/acpi/ec_dev.asl b/src/ec/google/wilco/acpi/ec_dev.asl index a3e8c48e1a..634e243075 100644 --- a/src/ec/google/wilco/acpi/ec_dev.asl +++ b/src/ec/google/wilco/acpi/ec_dev.asl @@ -62,3 +62,31 @@ Device (WLCO) EndDependentFn () }) } + +Device (WEVT) +{ + Name (_HID, "GOOG000D") + Name (_UID, 1) + Name (_DDN, "Wilco EC Event Interface") + + Method (_STA) + { + Return (0xB) + } + + /* Get Event Buffer */ + Method (QSET, 0, Serialized) + { + /* Get count of event bytes */ + Local0 = R (QSEC) + Name (QBUF, Buffer (Local0) {}) + + /* Fill QS event buffer with Local0 bytes */ + For (Local1 = 0, Local1 < Local0, Local1++) { + QBUF[Local1] = R (QSEB) + } + + Printf ("QS = %o", QBUF) + Return (QBUF) + } +} diff --git a/src/ec/google/wilco/acpi/event.asl b/src/ec/google/wilco/acpi/event.asl index 4a3394feec..d818d22ca2 100644 --- a/src/ec/google/wilco/acpi/event.asl +++ b/src/ec/google/wilco/acpi/event.asl @@ -79,7 +79,7 @@ Method (ECQ2, 1, Serialized) If (EBIT (E2QS, Arg0)) { Printf ("QS EVENT") - Notify (^WLCO, 0x90) + Notify (^WEVT, 0x90) } } @@ -125,19 +125,3 @@ Method (_Q66, 0, Serialized) ECQ4 (Local0) } } - -/* Get Event Buffer */ -Method (QSET, 0, Serialized) -{ - /* Get count of event bytes */ - Local0 = R (QSEC) - Name (QBUF, Buffer (Local0) {}) - - /* Fill QS event buffer with Local0 bytes */ - For (Local1 = 0, Local1 < Local0, Local1++) { - QBUF[Local1] = R (QSEB) - } - - Printf ("QS = %o", QBUF) - Return (QBUF) -} -- cgit v1.2.3