89 lines
2.5 KiB
Plaintext
89 lines
2.5 KiB
Plaintext
/** @file
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Intel ACPI Sample Code for discrete connectivity modules
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2017 - 2019 Intel Corporation.
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The source code contained or described herein and all documents related to the
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source code ("Material") are owned by Intel Corporation or its suppliers or
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licensors. Title to the Material remains with Intel Corporation or its suppliers
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and licensors. The Material may contain trade secrets and proprietary and
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confidential information of Intel Corporation and its suppliers and licensors,
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and is protected by worldwide copyright and trade secret laws and treaty
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provisions. No part of the Material may be used, copied, reproduced, modified,
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published, uploaded, posted, transmitted, distributed, or disclosed in any way
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without Intel's prior express written permission.
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No license under any patent, copyright, trade secret or other intellectual
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property right is granted to or conferred upon you by disclosure or delivery
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of the Materials, either expressly, by implication, inducement, estoppel or
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otherwise. Any license under such intellectual property rights must be
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express and approved by Intel in writing.
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Unless otherwise agreed by Intel in writing, you may not remove or alter
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this notice or any other notice embedded in Materials by Intel or
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Intel's suppliers or licensors in any way.
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This file contains a 'Sample Driver' and is licensed as such under the terms
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of your license agreement with Intel or your vendor. This file may be modified
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by the user, subject to the additional terms of the license agreement.
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@par Specification Reference:
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**/
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//
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// Default Platform-level device reset power resource
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//
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PowerResource(DRST, 5, 0)
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{
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// Define the PowerResource for PCIe slot
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// PowerResource expects to have _STA, _ON and _OFF Method per ACPI Spec. Not having one of them will cause BSOD
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// Method: Dummy _STA() to comply with ACPI Spec
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Method(_STA)
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{
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return(1)
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}
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// Method: Dummy _ON() to comply with ACPI Spec
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Method(_ON, 0)
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{
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}
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// Method: Dummy _OFF() to comply with ACPI Spec
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Method(_OFF, 0)
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{
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}
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// Method: _RST()
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Method(_RST, 0, NotSerialized)
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{
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If(And(DCAP, 0x10000000))
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{
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Store(DCTR, Local0)
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Or(Local0, 0x8000, Local0)
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Store(Local0, DCTR)
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}
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}
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} // End DRST
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Method(_PRR) {
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If (WIST())
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{
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If (CondRefOf(WRST))
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{
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Return(Package(){WRST})
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}
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}
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If(LAnd(LNotEqual(WWEN, 0), LEqual(WWRP, SLOT)))
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{
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If (CondRefOf(MRST))
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{
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Return(Package(){MRST})
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}
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}
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Return(Package(){DRST})
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} |