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| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
| commit | bb89ec1a7ec2f8d35033df9e47b3604925da3bd3 (patch) | |
| tree | 32d38e02ccab98dbac4c3014a12ac365775e8eb3 /EmulatorPkg/Library/PeiTimerLib | |
| parent | d3e0289ccf641481f2cbdcbb0d5868c393b7edbb (diff) | |
| download | edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.gz edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.bz2 edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.zip | |
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
Diffstat (limited to 'EmulatorPkg/Library/PeiTimerLib')
| -rw-r--r-- | EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c | 174 | ||||
| -rw-r--r-- | EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.inf | 47 |
2 files changed, 221 insertions, 0 deletions
diff --git a/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c b/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c new file mode 100644 index 0000000000..caf8a7c14a --- /dev/null +++ b/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.c @@ -0,0 +1,174 @@ +/** @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;
+}
diff --git a/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.inf b/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.inf new file mode 100644 index 0000000000..e473b52376 --- /dev/null +++ b/EmulatorPkg/Library/PeiTimerLib/PeiTimerLib.inf @@ -0,0 +1,47 @@ +## @file
+# NULL instance of Timer Library as a template.
+#
+# A non-functional instance of the Timer Library that can be used as a template
+# for the implementation of a functional timer library instance. This library instance can
+# also be used to test build DXE, Runtime, DXE SAL, and DXE SMM modules that require timer
+# services as well as EBC modules that require timer services.
+#
+# 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.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = EmuPeiTimerLib
+ FILE_GUID = 6ABE5FDC-AE4B-474E-8E52-9546C96AE536
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = TimerLib|PEIM PEI_CORE SEC
+
+
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ PeiTimerLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+ EmulatorPkg/EmulatorPkg.dec
+
+[LibraryClasses]
+ DebugLib
+ PeiServicesLib
+
+[Ppis]
+ gEmuThunkPpiGuid
\ No newline at end of file |