75 lines
3.1 KiB
Plaintext
75 lines
3.1 KiB
Plaintext
/** @file
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Source file for ACPI ADBG enable/disable.
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2021 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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#include <Include/AcpiDebug.h>
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#if FixedPcdGetBool(PcdAcpiDebugEnableFlag) == 1
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Scope (\_SB)
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{
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//
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// Acpi Assert method
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// Arg0: Post code to publish
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// Arg1: ACPi debug message to print
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// On calling the ACPI method, the method outputs postcode data to Port 80 [2 nibbles].
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// Method prints the debug serial message to serial interface.
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// A deadloop is implemented within which is a 10 second timer countdown.
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// Once the timer reaches zero, then ADB6 is printed for one minute before
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// repeating the timer countdown once again. The serial debug message is printed again
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// and the last two nibbles of the post code is printed again.
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//
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Method (ASRT, 2)
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{
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Local1 = Arg0 & 0x00FF // Grabbing the last two hex digits
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While(1) { // deadloop
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Local0 = 0x9 // This contains the timer value
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P8XH(0,Local1) // Output post code (LSB) to Port 80h.
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While(Local0 > 0)
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{
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P8XH(1,Local0) // Output post code (MSB) to port 81h.
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Local0-- // Subtract one
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for (Local2 = 10000, Local2 > 0, Local2--) // Stall has requirement that argument cannot be greater than 100
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{
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Stall(100); // wait one second where stall is in microseconds
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}
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}
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P8XH(0,0xB6) // Output post code (LSB) to Port 80h.
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P8XH(1,0xAD) // Output post code (MSB) to port 81h.
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Sleep(60000); // sleep for 1 minute where sleep is in milliseconds
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} //dead loop
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} //method ASRT
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} //scope \_SB
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#endif
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