diff options
Diffstat (limited to 'src/soc/intel/common/acpi/dptf/fan.asl')
-rw-r--r-- | src/soc/intel/common/acpi/dptf/fan.asl | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/soc/intel/common/acpi/dptf/fan.asl b/src/soc/intel/common/acpi/dptf/fan.asl new file mode 100644 index 0000000000..a748088e42 --- /dev/null +++ b/src/soc/intel/common/acpi/dptf/fan.asl @@ -0,0 +1,68 @@ +/* + * This file is part of the coreboot project. + * + * 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. + */ + +Device (TFN1) +{ + Name (_HID, "INT3404") + Name (_UID, 0) + Name (_STR, Unicode("Fan Control")) + + /* _FIF: Fan Information */ + Name (_FIF, Package () + { + 0, // Revision + 1, // Fine Grained Control + 2, // Step Size + 0 // No Low Speed Notification + }) + + /* Return Fan Performance States defined by mainboard */ + Method (_FPS) + { + Return (\_SB.DFPS) + } + + Name (TFST, Package () + { + 0, // Revision + 0x00, // Control + 0x00 // Speed + }) + + /* _FST: Fan current Status */ + Method (_FST, 0, Serialized,,PkgObj) + { + /* Fill in TFST with current control. */ + Store (\_SB.PCI0.LPCB.EC0.FAND, Index (TFST, 1)) + Return (TFST) + } + + /* _FSL: Fan Speed Level */ + Method (_FSL, 1, Serialized) + { + Store (Arg0, \_SB.PCI0.LPCB.EC0.FAND) + Notify (DPTF, 0x83) // Reevaluate _ART + } + + Method (_STA) + { + If (LEqual (\DPTE, One)) + { + Return (0xF) + } Else { + Return (0x0) + } + } +} |