diff options
| -rw-r--r-- | src/ec/google/wilco/acpi/ec.asl | 3 | ||||
| -rw-r--r-- | src/ec/google/wilco/acpi/ec_ram.asl | 4 | ||||
| -rw-r--r-- | src/ec/google/wilco/acpi/privacy.asl | 43 |
3 files changed, 50 insertions, 0 deletions
diff --git a/src/ec/google/wilco/acpi/ec.asl b/src/ec/google/wilco/acpi/ec.asl index 532f421780..8fcd0dd5c2 100644 --- a/src/ec/google/wilco/acpi/ec.asl +++ b/src/ec/google/wilco/acpi/ec.asl @@ -178,4 +178,7 @@ Device (EC0) #ifdef EC_ENABLE_DPTF #include "dptf.asl" #endif +#ifdef EC_ENABLE_PRIVACY + #include "privacy.asl" +#endif } diff --git a/src/ec/google/wilco/acpi/ec_ram.asl b/src/ec/google/wilco/acpi/ec_ram.asl index 47e9072dcb..af8fc0effc 100644 --- a/src/ec/google/wilco/acpi/ec_ram.asl +++ b/src/ec/google/wilco/acpi/ec_ram.asl @@ -125,6 +125,9 @@ Name (BCCY, Package () { 0x3e, 0xffff, RD }) /* BCACHE: Cycle Count */ Name (ESGN, Package () { 0x5c, 0xff, RD }) /* Indicate EC uses signed FW */ +Name (EPDT, Package () { 0x5d, 0xff, RD }) /* Privacy Screen Detection */ +Name (EPST, Package () { 0x5e, 0xff, RD }) /* Privacy Screen State */ + /* * EC RAM WRITE */ @@ -135,6 +138,7 @@ Name (SSEL, Package () { 0x04, 0xff, WR }) /* Battery String Select */ Name (ERDY, Package () { 0x05, 0xff, WR }) /* EC Ready */ Name (FWAK, Package () { 0x06, 0xff, WR }) /* EC _WAK */ Name (PS2M, Package () { 0x20, 0xff, WR }) /* EC PS/2 Mouse Emulation */ +Name (EPCT, Package () { 0x25, 0xff, WR }) /* Privacy Screen Control */ Name (DWST, Package () { 0x32, 0xff, WR }) /* DPTF: Write State */ Name (DWTI, Package () { 0x33, 0xff, WR }) /* DPTF: Write Thermal Index */ Name (DWTL, Package () { 0x35, 0xff, WR }) /* DPTF: Write Trip Low */ 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) +} |