mirror of https://github.com/acidanthera/audk.git
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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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 <Uefi.h>
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#include <Library/CacheMaintenanceLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Protocol/Cpu.h>
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#include <Protocol/DebugSupport.h>
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#include <Protocol/TimerDebugSupport.h>
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EFI_STATUS
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EFIAPI
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DebugSupportGetMaximumProcessorIndex (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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OUT UINTN *MaxProcessorIndex
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)
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{
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if (MaxProcessorIndex == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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*MaxProcessorIndex = 0;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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DebugSupportRegisterPeriodicCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_PERIODIC_CALLBACK PeriodicCallback
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)
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{
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TIMER_DEBUG_SUPPORT_PROTOCOL *Timer;
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EFI_STATUS Status;
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Status = gBS->LocateProtocol(&gTimerDebugSupportProtocolGuid, NULL, (VOID **)&Timer);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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Status = Timer->RegisterPeriodicCallback(Timer, PeriodicCallback);
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return Status;
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}
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EFI_STATUS
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EFIAPI
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DebugSupportRegisterExceptionCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_EXCEPTION_CALLBACK ExceptionCallback,
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IN EFI_EXCEPTION_TYPE ExceptionType
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)
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{
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EFI_CPU_ARCH_PROTOCOL *Cpu;
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EFI_STATUS Status;
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Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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Status = Cpu->RegisterInterruptHandler(Cpu, ExceptionType, (EFI_CPU_INTERRUPT_HANDLER)ExceptionCallback);
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return Status;
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}
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EFI_STATUS
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EFIAPI
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DebugSupportInvalidateInstructionCache (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN VOID *Start,
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IN UINT64 Length
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)
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{
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InvalidateInstructionCacheRange(Start, Length);
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return EFI_SUCCESS;
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}
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EFI_DEBUG_SUPPORT_PROTOCOL mDebugSupport = {
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IsaArm,
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DebugSupportGetMaximumProcessorIndex,
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DebugSupportRegisterPeriodicCallback,
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DebugSupportRegisterExceptionCallback,
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DebugSupportInvalidateInstructionCache
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};
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EFI_STATUS
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DebugSupportDxeInitialize (
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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 = NULL;
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ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiDebugSupportProtocolGuid);
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Status = gBS->InstallMultipleProtocolInterfaces(&Handle, &gEfiDebugSupportProtocolGuid, &mDebugSupport, NULL);
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return Status;
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}
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