diff options
author | Mathew King <mathewk@chromium.org> | 2019-10-14 11:59:41 -0600 |
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committer | Duncan Laurie <dlaurie@chromium.org> | 2019-12-02 23:28:03 +0000 |
commit | c650e130ced0ee1f62fe0d9bff7a89b8717f6f28 (patch) | |
tree | bb6ec9c28e25e43b071da5e8b5d2205cf717b33f /src/ec/google/wilco/acpi/privacy.asl | |
parent | 6f8f34f1bf91bd225b1dd9fe4dc70fdcf6ce2805 (diff) | |
download | coreboot-c650e130ced0ee1f62fe0d9bff7a89b8717f6f28.tar.xz |
ec/google/wilco: Add EC ACPI methods for privacy screen
Add ACPI methods to the Wilco EC for controlling a privacy screen
on the device.
BUG=b:142237145, b:142656363
TEST=none
Change-Id: Ic3c136f9d2de90eeb3c9e468e4c7430ccf6dcc42
Signed-off-by: Mathew King <mathewk@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36044
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/ec/google/wilco/acpi/privacy.asl')
-rw-r--r-- | src/ec/google/wilco/acpi/privacy.asl | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/ec/google/wilco/acpi/privacy.asl b/src/ec/google/wilco/acpi/privacy.asl new file mode 100644 index 0000000000..5c620b0fca --- /dev/null +++ b/src/ec/google/wilco/acpi/privacy.asl @@ -0,0 +1,43 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 Google LLC + * + * 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. + */ + +/* Read Privacy Screen Present */ +Method (GPVD, 0, Serialized) +{ + Return (R (EPDT)) +} + +/* Read Privacy Screen Status */ +Method (GPVX, 0, Serialized) +{ + If (R (EPST) == Zero) { + Return (Zero) + } + + Return (One) +} + +/* Enable Privacy Screen */ +Method (EPVX, 0, Serialized) +{ + W (EPCT, One) +} + +/* Disable Privacy Screen */ +Method (DPVX, 0, Serialized) +{ + W (EPCT, Zero) +} |