2 files changed, 136 insertions, 0 deletions
diff --git a/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.c b/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.c
new file mode 100644
index 0000000..a09a0d5
--- /dev/null
+++ b/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.c
@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+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.             
+
+Module Name:
+
+  Metronome.c
+
+Abstract:
+
+  Metronome Architectural Protocol as defined in Tiano
+
+--*/
+
+#include "Tiano.h"
+#include EFI_ARCH_PROTOCOL_DEFINITION (Metronome)
+
+EFI_GUID  gEfiMetronomeArchProtocolGuid = EFI_METRONOME_ARCH_PROTOCOL_GUID;
+
+EFI_GUID_STRING(&gEfiMetronomeArchProtocolGuid, "Metronome", "Metronome Arch Protocol");
diff --git a/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.h b/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.h
new file mode 100644
index 0000000..c254d9b
--- /dev/null
+++ b/EDK/Foundation/Core/Dxe/ArchProtocol/Metronome/Metronome.h
@@ -0,0 +1,109 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+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.             
+
+Module Name:
+
+  Metronome.h
+
+Abstract:
+
+  Metronome Architectural Protocol as defined in DXE CIS
+
+  This code abstracts the DXE core to provide delay services.
+
+--*/
+
+#ifndef _ARCH_PROTOCOL_METRONOME_H_
+#define _ARCH_PROTOCOL_METRONOME_H_
+
+//
+// Global ID for the Metronome Architectural Protocol
+//
+#define EFI_METRONOME_ARCH_PROTOCOL_GUID \
+  { 0x26baccb2, 0x6f42, 0x11d4, 0xbc, 0xe7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 }
+
+//
+// Declare forward reference for the Metronome Architectural Protocol
+//
+EFI_FORWARD_DECLARATION (EFI_METRONOME_ARCH_PROTOCOL);
+
+typedef 
+EFI_STATUS
+(EFIAPI *EFI_METRONOME_WAIT_FOR_TICK) (
+   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.
+
+  EFI_TIMEOUT - A timeout occurred waiting for the specified number of ticks.
+
+--*/
+
+//
+// Interface stucture for the Metronome Architectural Protocol
+//
+typedef struct _EFI_METRONOME_ARCH_PROTOCOL {
+  EFI_METRONOME_WAIT_FOR_TICK  WaitForTick;
+  UINT32                       TickPeriod;
+} EFI_METRONOME_ARCH_PROTOCOL;
+
+/*++
+
+  Protocol Description:
+    This protocol provides access to a known time source in the platform to the
+    core.  The core uses this known time source to produce core services that 
+    require calibrated delays.  
+
+  Parameters:
+
+    WaitForTick - Waits for a specified number of ticks from a known time source 
+                  in the platform.  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.
+
+    TickPeriod  - The period of platform's known time source in 100 nS units.  
+                  This value on any platform must be at least 10 uS, and must not 
+                  exceed 200 uS.  The value in this field is a constant that must 
+                  not be modified after the Metronome architectural protocol is 
+                  installed.  All consumers must treat this as a read-only field.
+    
+--*/
+
+extern EFI_GUID gEfiMetronomeArchProtocolGuid;
+
+#endif