diff options
Diffstat (limited to 'EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c')
| -rw-r--r-- | EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c b/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c deleted file mode 100644 index 4a212efbef..0000000000 --- a/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c +++ /dev/null @@ -1,174 +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/TimerLib.h>
-#include <Library/DebugLib.h>
-#include <Library/PeiServicesLib.h>
-
-#include <Ppi/EmuThunk.h>
-#include <Protocol/EmuThunk.h>
-
-/**
- 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
- )
-{
- EMU_THUNK_PPI *ThunkPpi;
- EFI_STATUS Status;
- EMU_THUNK_PROTOCOL *Thunk;
-
- //
- // Locate EmuThunkPpi for
- //
- Status = PeiServicesLocatePpi (
- &gEmuThunkPpiGuid,
- 0,
- NULL,
- (VOID **) &ThunkPpi
- );
- if (!EFI_ERROR (Status)) {
- Thunk = (EMU_THUNK_PROTOCOL *)ThunkPpi->Thunk ();
- Thunk->Sleep (NanoSeconds * 100);
- return NanoSeconds;
- }
-
- return 0;
-}
-
-/**
- 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
- )
-{
- EMU_THUNK_PPI *ThunkPpi;
- EFI_STATUS Status;
- EMU_THUNK_PROTOCOL *Thunk;
-
- //
- // Locate EmuThunkPpi for
- //
- Status = PeiServicesLocatePpi (
- &gEmuThunkPpiGuid,
- 0,
- NULL,
- (VOID **) &ThunkPpi
- );
- if (!EFI_ERROR (Status)) {
- Thunk = (EMU_THUNK_PROTOCOL *)ThunkPpi->Thunk ();
- return Thunk->QueryPerformanceCounter ();
- }
-
- return 0;
-}
-
-/**
- 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
- )
-{
- EMU_THUNK_PPI *ThunkPpi;
- EFI_STATUS Status;
- EMU_THUNK_PROTOCOL *Thunk;
-
- //
- // Locate EmuThunkPpi for
- //
- Status = PeiServicesLocatePpi (
- &gEmuThunkPpiGuid,
- 0,
- NULL,
- (VOID **) &ThunkPpi
- );
- if (!EFI_ERROR (Status)) {
- if (StartValue != NULL) {
- *StartValue = 0ULL;
- }
- if (EndValue != NULL) {
- *EndValue = (UINT64)-1LL;
- }
-
- Thunk = (EMU_THUNK_PROTOCOL *)ThunkPpi->Thunk ();
- return Thunk->QueryPerformanceFrequency ();
- }
-
- return 0;
-}
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