1 files changed, 128 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/LynxPoint/Smbus/Smm/PchSmbusEntry.c b/ReferenceCode/Chipset/LynxPoint/Smbus/Smm/PchSmbusEntry.c
new file mode 100644
index 0000000..37cb621
--- /dev/null
+++ b/ReferenceCode/Chipset/LynxPoint/Smbus/Smm/PchSmbusEntry.c
@@ -0,0 +1,128 @@
+/** @file
+  PCH Smbus Driver Entry
+
+@copyright
+  Copyright (c) 2009 - 2012 Intel Corporation. All rights reserved
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and uniquely
+  identified as "Intel Reference Module" and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+**/
+#include "PchSmbus.h"
+
+//
+// Global variables
+//
+EFI_SMM_BASE_PROTOCOL *mSmmBase;
+EFI_SMM_SYSTEM_TABLE  *mSmst;
+
+EFI_GUID  mEfiSmmSmbusProtocolGuid = EFI_SMM_SMBUS_PROTOCOL_GUID;
+
+/**
+  Execute an SMBUS operation
+
+  @param[in] This                 The protocol instance
+  @param[in] SlaveAddress         The address of the SMBUS slave device
+  @param[in] Command              The SMBUS command
+  @param[in] Operation            Which SMBus protocol will be issued
+  @param[in] PecCheck             If Packet Error Code Checking is to be used
+  @param[in, out] Length          Length of data
+  @param[in, out] Buffer          Data buffer
+
+  @retval EFI_SUCCESS             The SMBUS operation is successful
+  @retval Other Values            Something error occurred
+**/
+EFI_STATUS
+EFIAPI
+SmbusExecute (
+  IN      EFI_SMBUS_HC_PROTOCOL         *This,
+  IN      EFI_SMBUS_DEVICE_ADDRESS      SlaveAddress,
+  IN      EFI_SMBUS_DEVICE_COMMAND      Command,
+  IN      EFI_SMBUS_OPERATION           Operation,
+  IN      BOOLEAN                       PecCheck,
+  IN OUT  UINTN                         *Length,
+  IN OUT  VOID                          *Buffer
+  )
+{
+  InitializeSmbusRegisters ();
+
+  return SmbusExec (
+          SlaveAddress,
+          Command,
+          Operation,
+          PecCheck,
+          Length,
+          Buffer
+          );
+}
+
+/**
+  Smbus driver entry point
+
+  @param[in] ImageHandle          ImageHandle of this module
+  @param[in] SystemTable          EFI System Table
+
+  @retval EFI_SUCCESS             Driver initializes successfully
+  @retval Other values            Some error occurred
+**/
+EFI_STATUS
+EFIAPI
+InitializePchSmbusSmm (
+  IN      EFI_HANDLE            ImageHandle,
+  IN      EFI_SYSTEM_TABLE      *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  ///
+  /// Locate SMM Base Protocol
+  ///
+  Status = gBS->LocateProtocol (&gEfiSmmBaseProtocolGuid, NULL, (VOID **) &mSmmBase);
+  ASSERT_EFI_ERROR (Status);
+
+  ///
+  /// Initialize our module variables
+  ///
+  Status = mSmmBase->GetSmstLocation (mSmmBase, &mSmst);
+  ASSERT_EFI_ERROR (Status);
+
+  Status = mSmst->SmmAllocatePool (EfiRuntimeServicesData, sizeof (SMBUS_INSTANCE), (VOID **) &mSmbusContext);
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  } else {
+    ZeroMem (mSmbusContext, sizeof (SMBUS_INSTANCE));
+
+    mSmbusContext->Signature                  = PCH_SMBUS_PRIVATE_DATA_SIGNATURE;
+    mSmbusContext->IoDone                     = IoDone;
+    mSmbusContext->SmbusIoRead                = SmbusIoRead;
+    mSmbusContext->SmbusIoWrite               = SmbusIoWrite;
+    mSmbusContext->SmbusController.Execute    = SmbusExecute;
+    mSmbusContext->SmbusController.ArpDevice  = SmbusArpDevice;
+    mSmbusContext->SmbusController.GetArpMap  = SmbusGetArpMap;
+    mSmbusContext->SmbusController.Notify     = SmbusNotify;
+
+    ///
+    /// Install the SMBUS interface
+    ///
+    Status = gBS->InstallMultipleProtocolInterfaces (
+                    &mSmbusContext->Handle,
+                    &mEfiSmmSmbusProtocolGuid,
+                    &mSmbusContext->SmbusController,
+                    NULL
+                    );
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  return EFI_SUCCESS;
+}