1 files changed, 162 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c b/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c
new file mode 100644
index 0000000000..d4a90ee02d
--- /dev/null
+++ b/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c
@@ -0,0 +1,162 @@
+/** @file
+  PCH Smm Library Services that implements both S/W SMI generation and detection.
+
+  Copyright (c) 2007  - 2014, 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 that 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 "CommonHeader.h"
+
+
+/**
+  Triggers a run time or boot time SMI.
+
+  This function triggers a software SMM interrupt and set the APMC status with an 8-bit Data.
+
+  @param  Data                 The value to set the APMC status.
+
+**/
+VOID
+InternalTriggerSmi (
+  IN UINT8                     Data
+  )
+{
+  ASSERT(FALSE);
+}
+
+
+/**
+  Triggers an SMI at boot time.
+
+  This function triggers a software SMM interrupt at boot time.
+
+**/
+VOID
+EFIAPI
+TriggerBootServiceSoftwareSmi (
+  VOID
+  )
+{
+  ASSERT(FALSE);
+}
+
+
+/**
+  Triggers an SMI at run time.
+
+  This function triggers a software SMM interrupt at run time.
+
+**/
+VOID
+EFIAPI
+TriggerRuntimeSoftwareSmi (
+  VOID
+  )
+{
+  ASSERT(FALSE);
+}
+
+
+/**
+  Gets the software SMI data.
+
+  This function tests if a software SMM interrupt happens. If a software SMI happens,
+  it retrieves the SMM data and returns it as a non-negative value; otherwise a negative
+  value is returned.
+
+  @return Data                 The data retrieved from SMM data port in case of a software SMI;
+                               otherwise a negative value.
+
+**/
+INTN
+InternalGetSwSmiData (
+  VOID
+  )
+{
+  ASSERT(FALSE);
+  return -1;
+}
+
+
+/**
+  Test if a boot time software SMI happened.
+
+  This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
+  it was triggered at boot time, it returns TRUE. Otherwise, it returns FALSE.
+
+  @retval TRUE   A software SMI triggered at boot time happened.
+  @retval FLASE  No software SMI happened or the software SMI was triggered at run time.
+
+**/
+BOOLEAN
+EFIAPI
+IsBootServiceSoftwareSmi (
+  VOID
+  )
+{
+  ASSERT(FALSE);
+  return FALSE;
+}
+
+
+/**
+  Test if a run time software SMI happened.
+
+  This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
+  it was triggered at run time, it returns TRUE. Otherwise, it returns FALSE.
+
+  @retval TRUE   A software SMI triggered at run time happened.
+  @retval FLASE  No software SMI happened or the software SMI was triggered at boot time.
+
+**/
+BOOLEAN
+EFIAPI
+IsRuntimeSoftwareSmi (
+  VOID
+  )
+{
+  ASSERT(FALSE);
+  return FALSE;
+}
+
+
+/**
+
+  Clear APM SMI Status Bit; Set the EOS bit.
+
+**/
+VOID
+EFIAPI
+ClearSmi (
+  VOID
+  )
+{
+
+  UINT16                       PmBase;
+
+  //
+  // Get PMBase
+  //
+  PmBase = PcdGet16 (PcdPchAcpiIoPortBaseAddress);
+
+  //
+  // Clear the APM SMI Status Bit
+  //
+  IoWrite16 (PmBase + R_PCH_ACPI_SMI_STS, B_PCH_ACPI_APM_STS);
+
+  //
+  // Set the EOS Bit
+  //
+  IoOr32 (PmBase + R_PCH_ACPI_SMI_EN, B_PCH_ACPI_EOS);
+}
+