89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/*++ @file
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Entrypoint of AcpiResetDxe driver.
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Copyright (c) 2010, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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--*/
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#include "Reset.h"
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EFI_ACPI_DESCRIPTION mAcpiDescription;
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/**
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Reset the system.
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@param[in] ResetType Warm or cold
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@param[in] ResetStatus Possible cause of reset
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@param[in] DataSize Size of ResetData in bytes
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@param[in] ResetData Optional Unicode string
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**/
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VOID
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EFIAPI
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EfiAcpiResetSystem (
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IN EFI_RESET_TYPE ResetType,
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IN EFI_STATUS ResetStatus,
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IN UINTN DataSize,
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IN CHAR16 *ResetData OPTIONAL
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)
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{
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AcpiResetSystem (ResetType, ResetStatus, DataSize, ResetData, &mAcpiDescription);
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}
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/**
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Initialize the state information for the Reset Architectural Protocol.
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@param[in] ImageHandle Image handle of the loaded driver
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@param[in] SystemTable Pointer to the System Table
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@retval EFI_SUCCESS Thread can be successfully created
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@retval EFI_UNSUPPORTED Cannot find the info to reset system
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**/
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EFI_STATUS
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EFIAPI
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InitializeReset (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE Handle;
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//
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// Initialize AcpiDescription
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//
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if (!GetAcpiDescription (&mAcpiDescription)) {
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return EFI_UNSUPPORTED;
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}
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//
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// Make sure the Reset Architectural Protocol is not already installed in the system
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//
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ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);
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//
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// Hook the runtime service table
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//
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SystemTable->RuntimeServices->ResetSystem = EfiAcpiResetSystem;
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//
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// Now install the Reset RT AP on a new handle
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//
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Handle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Handle,
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&gEfiResetArchProtocolGuid,
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NULL,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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