diff options
Diffstat (limited to 'InOsEmuPkg/MetronomeDxe')
| -rw-r--r-- | InOsEmuPkg/MetronomeDxe/Metronome.c | 125 | ||||
| -rw-r--r-- | InOsEmuPkg/MetronomeDxe/Metronome.h | 56 | ||||
| -rw-r--r-- | InOsEmuPkg/MetronomeDxe/Metronome.inf | 59 |
3 files changed, 240 insertions, 0 deletions
diff --git a/InOsEmuPkg/MetronomeDxe/Metronome.c b/InOsEmuPkg/MetronomeDxe/Metronome.c new file mode 100644 index 0000000000..34f946984f --- /dev/null +++ b/InOsEmuPkg/MetronomeDxe/Metronome.c @@ -0,0 +1,125 @@ +/*++ @file
+ Emu Emulation Metronome Architectural Protocol Driver as defined in DXE CIS
+
+Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
+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 "Metronome.h"
+
+
+//
+// Global Variables
+//
+EFI_METRONOME_ARCH_PROTOCOL mMetronome = {
+ EmuMetronomeDriverWaitForTick,
+ TICK_PERIOD
+};
+
+//
+// Worker Functions
+//
+
+EFI_STATUS
+EFIAPI
+EmuMetronomeDriverWaitForTick (
+ IN EFI_METRONOME_ARCH_PROTOCOL *This,
+ IN UINT32 TickNumber
+ )
+/*++
+
+Routine Description:
+
+ The WaitForTick() function waits for the number of ticks specified by
+ TickNumber from a known time source in the platform. If TickNumber of
+ ticks are detected, then EFI_SUCCESS is returned. The actual time passed
+ between entry of this function and the first tick is between 0 and
+ TickPeriod 100 nS units. If you want to guarantee that at least TickPeriod
+ time has elapsed, wait for two ticks. This function waits for a hardware
+ event to determine when a tick occurs. It is possible for interrupt
+ processing, or exception processing to interrupt the execution of the
+ WaitForTick() function. Depending on the hardware source for the ticks, it
+ is possible for a tick to be missed. This function cannot guarantee that
+ ticks will not be missed. If a timeout occurs waiting for the specified
+ number of ticks, then EFI_TIMEOUT is returned.
+
+Arguments:
+
+ This - The EFI_METRONOME_ARCH_PROTOCOL instance.
+ TickNumber - Number of ticks to wait.
+
+Returns:
+
+ EFI_SUCCESS - The wait for the number of ticks specified by TickNumber
+ succeeded.
+
+**/
+{
+ UINT64 SleepTime;
+
+ //
+ // Calculate the time to sleep. Emu smallest unit to sleep is 1 millisec
+ // Tick Period is in 100ns units, divide by 10000 to convert to ms
+ //
+ SleepTime = DivU64x32 (MultU64x32 ((UINT64) TickNumber, TICK_PERIOD) + 9999, 10000);
+ gEmuThunk->Sleep (SleepTime);
+
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+EmuMetronomeDriverInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+Routine Description:
+
+ Initialize the Metronome Architectural Protocol driver
+
+Arguments:
+
+ ImageHandle - ImageHandle of the loaded driver
+
+
+ SystemTable - Pointer to the System Table
+
+Returns:
+
+ EFI_SUCCESS - Metronome Architectural Protocol created
+
+ EFI_OUT_OF_RESOURCES - Not enough resources available to initialize driver.
+
+ EFI_DEVICE_ERROR - A device error occured attempting to initialize the driver.
+
+**/
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+
+ //
+ // Install the Metronome Architectural Protocol onto a new handle
+ //
+ Handle = NULL;
+ Status = gBS->InstallProtocolInterface (
+ &Handle,
+ &gEfiMetronomeArchProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mMetronome
+ );
+
+ return Status;
+}
diff --git a/InOsEmuPkg/MetronomeDxe/Metronome.h b/InOsEmuPkg/MetronomeDxe/Metronome.h new file mode 100644 index 0000000000..5115e0b55b --- /dev/null +++ b/InOsEmuPkg/MetronomeDxe/Metronome.h @@ -0,0 +1,56 @@ +/*++ @file
+ Emu Emulation Metronome Architectural Protocol Driver as defined in DXE CIS
+
+Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
+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.
+
+**/
+
+#ifndef _EMU_THUNK_METRONOME_H_
+#define _EMU_THUNK_METRONOME_H_
+
+#include <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/EmuThunkLib.h>
+
+#include <Protocol/Metronome.h>
+
+
+
+//
+// Period of on tick in 100 nanosecond units
+//
+#define TICK_PERIOD 2000
+
+//
+// Function Prototypes
+//
+
+EFI_STATUS
+EFIAPI
+EmuMetronomeDriverInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ );
+
+EFI_STATUS
+EFIAPI
+EmuMetronomeDriverWaitForTick (
+ IN EFI_METRONOME_ARCH_PROTOCOL *This,
+ IN UINT32 TickNumber
+ );
+
+#endif
diff --git a/InOsEmuPkg/MetronomeDxe/Metronome.inf b/InOsEmuPkg/MetronomeDxe/Metronome.inf new file mode 100644 index 0000000000..4befdf3d61 --- /dev/null +++ b/InOsEmuPkg/MetronomeDxe/Metronome.inf @@ -0,0 +1,59 @@ +## @file
+# Emu Emulation Metronome Architectural Protocol Driver as defined in DXE CIS
+#
+# This metronome module simulates metronome by Sleep WinAPI.
+# Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+# Portions copyright (c) 2011, Apple Inc. All rights reserved.
+#
+# 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 = Metronome
+ FILE_GUID = f348f6fe-8985-11db-b4c3-0040d02b1835
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = EmuMetronomeDriverInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ Metronome.h
+ Metronome.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+ InOsEmuPkg/InOsEmuPkg.dec
+
+
+[LibraryClasses]
+ UefiBootServicesTableLib
+ MemoryAllocationLib
+ EmuThunkLib
+ UefiDriverEntryPoint
+ UefiLib
+ DebugLib
+ BaseLib
+
+
+[Protocols]
+ gEfiMetronomeArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED
+
+
+[Depex]
+ TRUE
+
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