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-rw-r--r--src/ec/google/wilco/acpi/ec.asl9
-rw-r--r--src/ec/google/wilco/acpi/event.asl10
2 files changed, 17 insertions, 2 deletions
diff --git a/src/ec/google/wilco/acpi/ec.asl b/src/ec/google/wilco/acpi/ec.asl
index 1bb28be063..7531dbf8a5 100644
--- a/src/ec/google/wilco/acpi/ec.asl
+++ b/src/ec/google/wilco/acpi/ec.asl
@@ -7,6 +7,8 @@ Device (EC0)
Name (_GPE, EC_SCI_GPI)
Name (_STA, 0xf)
Name (DBUG, Zero)
+ Name (ISSX, Zero) /* Is the EC in S0ix mode? */
+ Name (UCEP, Zero) /* Is there a pending UCSI event? */
Name (_CRS, ResourceTemplate() {
IO (Decode16,
@@ -140,6 +142,8 @@ Device (EC0)
*/
Method (S0IX, 1, Serialized)
{
+ ^ISSX = Arg0 /* Update S0ix state. */
+
If (Arg0) {
Printf ("EC Enter S0ix")
W (CSEX, One)
@@ -152,6 +156,11 @@ Device (EC0)
} Else {
Printf ("EC Exit S0ix")
W (CSEX, Zero)
+
+ /* If UCSI event happened during S0ix send it now. */
+ If (^UCEP == One) {
+ ^_Q79 ()
+ }
}
}
diff --git a/src/ec/google/wilco/acpi/event.asl b/src/ec/google/wilco/acpi/event.asl
index bf4bb19be7..4e24ee32de 100644
--- a/src/ec/google/wilco/acpi/event.asl
+++ b/src/ec/google/wilco/acpi/event.asl
@@ -139,6 +139,12 @@ Method (_Q66, 0, Serialized)
/* UCSI SCI uses a unique event code */
Method (_Q79, 0, Serialized)
{
- Printf ("EC _Q79 UCSI Event")
- Notify (^UCSI, 0x80)
+ If (ISSX == Zero) {
+ Printf ("EC _Q79 UCSI Event")
+ Notify (^UCSI, 0x80)
+ ^UCEP = Zero
+ } Else {
+ Printf ("EC _Q79 UCSI Event Masked in S0ix")
+ ^UCEP = One
+ }
}