InOsEmuPkg: Rename package to EmulatorPkg & Sec to Host

* Rename InOsEmuPkg to EmulatorPkg
* Rename Unix/Sec to Unix/Host

Signed-off-by: jljusten
Reviewed-by: andrewfish
Reviewed-by: geekboy15a

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11918 6f19259b-4bc3-4df7-8a09-765794883524

EmulatorPkg/Library/DxeTimerLib/DxeTimerLib.c

@@ -0,0 +1,206 @@
+/** @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;
+}
+