diff options
Diffstat (limited to 'EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c')
| -rw-r--r-- | EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c b/EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c deleted file mode 100644 index 032fec4b84..0000000000 --- a/EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c +++ /dev/null @@ -1,206 +0,0 @@ -/** @file
- A non-functional instance of the Timer Library.
-
- Copyright (c) 2007 - 2010, Intel Corporation. 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 <PiPei.h>
-#include <Library/BaseLib.h>
-#include <Library/TimerLib.h>
-#include <Library/DebugLib.h>
-#include <Library/EmuThunkLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-
-#include <Protocol/Timer.h>
-
-
-STATIC UINT64 gTimerPeriod = 0;
-STATIC EFI_TIMER_ARCH_PROTOCOL *gTimerAp = NULL;
-STATIC EFI_EVENT gTimerEvent = NULL;
-STATIC VOID *gRegistration = NULL;
-
-VOID
-EFIAPI
-RegisterTimerArchProtocol (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EFI_STATUS Status;
-
- Status = gBS->LocateProtocol (&gEfiTimerArchProtocolGuid, NULL, (VOID **)&gTimerAp);
- if (!EFI_ERROR (Status)) {
- Status = gTimerAp->GetTimerPeriod (gTimerAp, &gTimerPeriod);
- ASSERT_EFI_ERROR (Status);
-
- // Convert to Nanoseconds.
- gTimerPeriod = MultU64x32 (gTimerPeriod, 100);
-
- if (gTimerEvent == NULL) {
- Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, (VOID **)&gTimerEvent);
- ASSERT_EFI_ERROR (Status);
- }
- }
-}
-
-
-
-/**
- Stalls the CPU for at least the given number of microseconds.
-
- Stalls the CPU for the number of microseconds specified by MicroSeconds.
-
- @param MicroSeconds The minimum number of microseconds to delay.
-
- @return The value of MicroSeconds inputted.
-
-**/
-UINTN
-EFIAPI
-MicroSecondDelay (
- IN UINTN MicroSeconds
- )
-{
- return NanoSecondDelay (MicroSeconds * 1000);
-}
-
-
-/**
- Stalls the CPU for at least the given number of nanoseconds.
-
- Stalls the CPU for the number of nanoseconds specified by NanoSeconds.
-
- @param NanoSeconds The minimum number of nanoseconds to delay.
-
- @return The value of NanoSeconds inputted.
-
-**/
-UINTN
-EFIAPI
-NanoSecondDelay (
- IN UINTN NanoSeconds
- )
-{
- EFI_STATUS Status;
- UINT64 HundredNanoseconds;
- UINTN Index;
-
- if ((gTimerPeriod != 0) &&
- ((UINT64)NanoSeconds > gTimerPeriod) &&
- (EfiGetCurrentTpl () == TPL_APPLICATION)) {
- //
- // This stall is long, so use gBS->WaitForEvent () to yield CPU to DXE Core
- //
-
- HundredNanoseconds = DivU64x32 (NanoSeconds, 100);
- Status = gBS->SetTimer (gTimerEvent, TimerRelative, HundredNanoseconds);
- ASSERT_EFI_ERROR (Status);
-
- Status = gBS->WaitForEvent (sizeof (gTimerEvent)/sizeof (EFI_EVENT), &gTimerEvent, &Index);
- ASSERT_EFI_ERROR (Status);
-
- } else {
- gEmuThunk->Sleep (NanoSeconds);
- }
- return NanoSeconds;
-}
-
-
-/**
- Retrieves the current value of a 64-bit free running performance counter.
-
- The counter can either count up by 1 or count down by 1. If the physical
- performance counter counts by a larger increment, then the counter values
- must be translated. The properties of the counter can be retrieved from
- GetPerformanceCounterProperties().
-
- @return The current value of the free running performance counter.
-
-**/
-UINT64
-EFIAPI
-GetPerformanceCounter (
- VOID
- )
-{
- return gEmuThunk->QueryPerformanceCounter ();
-}
-
-/**
- Retrieves the 64-bit frequency in Hz and the range of performance counter
- values.
-
- If StartValue is not NULL, then the value that the performance counter starts
- with immediately after is it rolls over is returned in StartValue. If
- EndValue is not NULL, then the value that the performance counter end with
- immediately before it rolls over is returned in EndValue. The 64-bit
- frequency of the performance counter in Hz is always returned. If StartValue
- is less than EndValue, then the performance counter counts up. If StartValue
- is greater than EndValue, then the performance counter counts down. For
- example, a 64-bit free running counter that counts up would have a StartValue
- of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter
- that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0.
-
- @param StartValue The value the performance counter starts with when it
- rolls over.
- @param EndValue The value that the performance counter ends with before
- it rolls over.
-
- @return The frequency in Hz.
-
-**/
-UINT64
-EFIAPI
-GetPerformanceCounterProperties (
- OUT UINT64 *StartValue, OPTIONAL
- OUT UINT64 *EndValue OPTIONAL
- )
-{
-
- if (StartValue != NULL) {
- *StartValue = 0ULL;
- }
- if (EndValue != NULL) {
- *EndValue = (UINT64)-1LL;
- }
-
- return gEmuThunk->QueryPerformanceFrequency ();
-}
-
-
-/**
- Register for the Timer AP protocol.
-
- @param ImageHandle The firmware allocated handle for the EFI image.
- @param SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
-
-**/
-EFI_STATUS
-EFIAPI
-DxeTimerLibConstructor (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EfiCreateProtocolNotifyEvent (
- &gEfiTimerArchProtocolGuid,
- TPL_CALLBACK,
- RegisterTimerArchProtocol,
- NULL,
- &gRegistration
- );
-
- return EFI_SUCCESS;
-}
-
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