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/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Uefi.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Protocol/Cpu.h>
#include <Protocol/DebugSupport.h>
#include <Protocol/TimerDebugSupport.h>
EFI_STATUS
EFIAPI
DebugSupportGetMaximumProcessorIndex (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
OUT UINTN *MaxProcessorIndex
)
{
if (MaxProcessorIndex == NULL) {
return EFI_INVALID_PARAMETER;
}
*MaxProcessorIndex = 0;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
DebugSupportRegisterPeriodicCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_PERIODIC_CALLBACK PeriodicCallback
)
{
TIMER_DEBUG_SUPPORT_PROTOCOL *Timer;
EFI_STATUS Status;
Status = gBS->LocateProtocol(&gTimerDebugSupportProtocolGuid, NULL, (VOID **)&Timer);
if (EFI_ERROR(Status)) {
return Status;
}
Status = Timer->RegisterPeriodicCallback(Timer, PeriodicCallback);
return Status;
}
EFI_STATUS
EFIAPI
DebugSupportRegisterExceptionCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_EXCEPTION_CALLBACK ExceptionCallback,
IN EFI_EXCEPTION_TYPE ExceptionType
)
{
EFI_CPU_ARCH_PROTOCOL *Cpu;
EFI_STATUS Status;
Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
if (EFI_ERROR(Status)) {
return Status;
}
Status = Cpu->RegisterInterruptHandler(Cpu, ExceptionType, (EFI_CPU_INTERRUPT_HANDLER)ExceptionCallback);
return Status;
}
EFI_STATUS
EFIAPI
DebugSupportInvalidateInstructionCache (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN VOID *Start,
IN UINT64 Length
)
{
InvalidateInstructionCacheRange(Start, Length);
return EFI_SUCCESS;
}
EFI_DEBUG_SUPPORT_PROTOCOL mDebugSupport = {
IsaArm,
DebugSupportGetMaximumProcessorIndex,
DebugSupportRegisterPeriodicCallback,
DebugSupportRegisterExceptionCallback,
DebugSupportInvalidateInstructionCache
};
EFI_STATUS
DebugSupportDxeInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE Handle = NULL;
ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiDebugSupportProtocolGuid);
Status = gBS->InstallMultipleProtocolInterfaces(&Handle, &gEfiDebugSupportProtocolGuid, &mDebugSupport, NULL);
return Status;
}
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