Add generic HPET Timer DXE Driver and support libraries

Signed-off-by: mdkinney
Reviewed-by: li-elvin

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12259 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 82 insertions, 2 deletions

diff --git a/UefiCpuPkg/Include/Library/LocalApicLib.h b/UefiCpuPkg/Include/Library/LocalApicLib.h
index d68e0e48b9..52914fa9bd 100644
--- a/UefiCpuPkg/Include/Library/LocalApicLib.h
+++ b/UefiCpuPkg/Include/Library/LocalApicLib.h
@@ -4,7 +4,7 @@
   Local APIC library assumes local APIC is enabled. It does not

   handles cases where local APIC is disabled.

 

-  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2010 - 2011, 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

@@ -319,5 +319,54 @@ SendApicEoi (
   VOID

   );

 

+/**

+  Get the 32-bit address that a device should use to send a Message Signaled 

+  Interrupt (MSI) to the Local APIC of the currently executing processor.

+

+  @return 32-bit address used to send an MSI to the Local APIC.

+**/

+UINT32

+EFIAPI    

+GetApicMsiAddress (

+  VOID

+  );

+    

+/**

+  Get the 64-bit data value that a device should use to send a Message Signaled 

+  Interrupt (MSI) to the Local APIC of the currently executing processor.

+

+  If Vector is not in range 0x10..0xFE, then ASSERT().

+  If DeliveryMode is not supported, then ASSERT().

+  

+  @param  Vector          The 8-bit interrupt vector associated with the MSI.  

+                          Must be in the range 0x10..0xFE

+  @param  DeliveryMode    A 3-bit value that specifies how the recept of the MSI 

+                          is handled.  The only supported values are:

+                            0: LOCAL_APIC_DELIVERY_MODE_FIXED

+                            1: LOCAL_APIC_DELIVERY_MODE_LOWEST_PRIORITY

+                            2: LOCAL_APIC_DELIVERY_MODE_SMI

+                            4: LOCAL_APIC_DELIVERY_MODE_NMI

+                            5: LOCAL_APIC_DELIVERY_MODE_INIT

+                            7: LOCAL_APIC_DELIVERY_MODE_EXTINT

+                          

+  @param  LevelTriggered  TRUE specifies a level triggered interrupt.  

+                          FALSE specifies an edge triggered interrupt.

+  @param  AssertionLevel  Ignored if LevelTriggered is FALSE.

+                          TRUE specifies a level triggered interrupt that active 

+                          when the interrupt line is asserted.

+                          FALSE specifies a level triggered interrupt that active 

+                          when the interrupt line is deasserted.

+

+  @return 64-bit data value used to send an MSI to the Local APIC.

+**/

+UINT64

+EFIAPI    

+GetApicMsiValue (

+  IN UINT8    Vector,

+  IN UINTN    DeliveryMode,

+  IN BOOLEAN  LevelTriggered,

+  IN BOOLEAN  AssertionLevel

+  );

+  

 #endif

 

diff --git a/UefiCpuPkg/Include/Register/LocalApic.h b/UefiCpuPkg/Include/Register/LocalApic.h
index 9f8f1bb8bb..bb0e211dc7 100644
--- a/UefiCpuPkg/Include/Register/LocalApic.h
+++ b/UefiCpuPkg/Include/Register/LocalApic.h
@@ -1,7 +1,7 @@
 /** @file

   IA32 Local APIC Definitions.

 

-  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2010 - 2011, 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

@@ -179,5 +179,36 @@ typedef union {
   UINT32    Uint32;

 } LOCAL_APIC_LVT_LINT;

 

+//

+// MSI Address Register

+//

+typedef union {

+  struct {

+    UINT32  Reserved0:2;         ///< Reserved

+    UINT32  DestinationMode:1;   ///< Specifies the Destination Mode.

+    UINT32  RedirectionHint:1;   ///< Specifies the Redirection Hint.

+    UINT32  Reserved1:8;         ///< Reserved.

+    UINT32  DestinationId:8;     ///< Specifies the Destination ID.

+    UINT32  BaseAddress:12;      ///< Must be 0FEEH

+  } Bits;

+  UINT32    Uint32;

+} LOCAL_APIC_MSI_ADDRESS;

+

+//

+// MSI Address Register

+//

+typedef union {

+  struct {

+    UINT32  Vector:8;            ///< Interrupt vector in range 010h..0FEH

+    UINT32  DeliveryMode:3;      ///< Specifies the type of interrupt to be sent.

+    UINT32  Reserved0:3;         ///< Reserved.

+    UINT32  Level:1;             ///< 0:Deassert, 1:Assert.  Ignored for Edge triggered interrupts.

+    UINT32  TriggerMode:1;       ///< 0:Edge,     1:Level.

+    UINT32  Reserved1:16;        ///< Reserved.

+    UINT32  Reserved2:32;        ///< Reserved.

+  } Bits;

+  UINT64    Uint64;

+} LOCAL_APIC_MSI_DATA;

+

 #endif