125 lines
4.9 KiB
Plaintext
125 lines
4.9 KiB
Plaintext
/** @file
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Intel ACPI Reference Code for _DSM BT Feature Enabling Implementation
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2020 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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// Intel Proprietary BT Feature Enabling Solution
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//--------------------------------------------------
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//
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// _DSM (Device Specific Method)
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//
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// This optional object is a control method that enables devices to provide device specific control
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// functions that are consumed by the device driver.
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//
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// Arguments: (4)
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// Arg0 - A Buffer containing a UUID
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// Arg1 - An Integer containing the Revision ID
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// Arg2 - An Integer containing the Function Index
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// Arg3 - A Package that contains function-specific arguments
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// Return Value:
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// If Function Index = 0, a Buffer containing a function index bit-field which has set of supported function indexes.
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// Otherwise, the return feature value based on set of supported function type which depends on the UUID and revision ID.
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//
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Name(RDLY, 105)
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Method(_DSM, 0x4, Serialized, 0, {IntObj, BuffObj}, {BuffObj, IntObj, IntObj, PkgObj})
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{
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If(LEqual(Arg0, ToUUID("AA10F4E0-81AC-4233-ABF6-3B2AC50E28D9"))) {
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//
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// Function 0 : Query Function/Get supported functions (based on revision)
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// For Revision 0,
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// -- Return value would contain one bit for each function index. Starting with zero.
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// -- Bit 0 indicates whether there is support for any functions other than function 0 for the specified UUID and Revision ID.
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// -- If set to zero, no functions are supported.
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//
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If(LEqual(Arg2, Zero)) {
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// Revision 0
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If(LEqual(Arg1, Zero)){ // The current revision is 0
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//
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// Below are functions defined.
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// Bit0 - Indicates whether its support for any other functions
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// Bit1 - Set BT reset timing
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// Bit31:2 - Reserved for future options
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Return(Buffer(){0x03})
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} Else {
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Return(Buffer(){0}) // No supported functions.
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}
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}
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//
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// Function 1 : Set BT reset timing
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//
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If(LEqual(Arg2, One)) {
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Store(Arg3, RDLY)
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}
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// No other supported functions, but normal return.
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Return(0)
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} ElseIf (LEqual(Arg0, ToUUID("2D19D3E1-5708-4696-BD5B-2C3DBAE2D6A9"))) {
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//
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// Function 0 : Query Function/Get supported functions (based on revision)
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// For Revision 0,
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// -- Return value would contain one bit for each function index. Starting with zero.
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// -- Bit 0 indicates whether there is support for any functions other than function 0 for the specified UUID and Revision ID.
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// -- If set to zero, no functions are supported.
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//
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If(LEqual(Arg2, Zero)) {
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// Revision 0
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If(LEqual(Arg1, Zero)){ // The current revision is 0
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//
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// Below are functions defined.
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// Bit0 - Indicates whether its support for any other functions
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// Bit1 - Set Tile Activation
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// Bit31:2 - Reserved for future options
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Return(Buffer(){0x03})
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} Else {
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Return(Buffer(){0}) // No supported functions.
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}
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}
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//
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// Function 1 : Set Tile Activation
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//
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// Currently no action to BIOS in function 1. OEM can define if anything is needed when setting Tile activation.
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//
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If(LEqual(Arg2, One)) {
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}
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// No other supported functions, but normal return.
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Return(0)
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} Else {
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Return(Buffer(){0}) // Guid mismatch
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}
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}
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