diff options
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/google/chromeec/acpi/ec.asl | 4 | ||||
| -rw-r--r-- | src/ec/google/chromeec/acpi/keyboard_backlight.asl | 42 |
2 files changed, 46 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl index 746060ec56..8b4f91d8c8 100644 --- a/src/ec/google/chromeec/acpi/ec.asl +++ b/src/ec/google/chromeec/acpi/ec.asl @@ -420,6 +420,10 @@ Device (EC0) #include "als.asl" #endif +#ifdef EC_ENABLE_KEYBOARD_BACKLIGHT + #include "keyboard_backlight.asl" +#endif + #ifdef EC_ENABLE_PD_MCU_DEVICE #include "pd.asl" #endif diff --git a/src/ec/google/chromeec/acpi/keyboard_backlight.asl b/src/ec/google/chromeec/acpi/keyboard_backlight.asl new file mode 100644 index 0000000000..608994e435 --- /dev/null +++ b/src/ec/google/chromeec/acpi/keyboard_backlight.asl @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc. + */ + +Scope (\_SB) +{ + /* + * Chrome EC Keyboard Backlight interface + */ + Device (KBLT) + { + Name (_HID, "GOOG0002") + Name (_UID, 1) + + /* Read current backlight value */ + Method (KBQC, 0, NotSerialized) + { + Return (\_SB.PCI0.LPCB.EC0.KBLV) + } + + /* Write new backlight value */ + Method (KBCM, 1, NotSerialized) + { + Store (Arg0, \_SB.PCI0.LPCB.EC0.KBLV) + } + } +} |