diff options
| -rw-r--r-- | src/drivers/intel/wifi/acpi/wrdd.asl | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/drivers/intel/wifi/acpi/wrdd.asl b/src/drivers/intel/wifi/acpi/wrdd.asl new file mode 100644 index 0000000000..6f071ad976 --- /dev/null +++ b/src/drivers/intel/wifi/acpi/wrdd.asl @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Google Inc. + * Copyright (C) 2016 Intel Corporation + * + * 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. + */ + +/* + * This method is used by the Intel wireless kernel drivers to determine + * the proper country code for regulatory domain configuration. + * + * It requires an NVS field called CID1 to be present that provides the + * ISO-3166-2 alpha-2 country code. + */ +Method (WRDD, 0, Serialized) +{ + Name (WRDX, Package () { + 0, /* Revision */ + Package () { + 0x00000007, /* Domain Type, 0x7:WiFi */ + 0x00000000, /* No Default Country Identifier */ + } + }) + + /* Replace Country Identifier with value from NVS */ + Store (\CID1, Index (DeRefOf (Index (WRDX, 1)), 1)) + Return (WRDX) +} |