1 files changed, 145 insertions, 0 deletions
diff --git a/ReferenceCode/ME/Library/PttHeci/Dxe/PttHeciDxeLib.c b/ReferenceCode/ME/Library/PttHeci/Dxe/PttHeciDxeLib.c
new file mode 100644
index 0000000..2e87dd6
--- /dev/null
+++ b/ReferenceCode/ME/Library/PttHeci/Dxe/PttHeciDxeLib.c
@@ -0,0 +1,145 @@
+/** @file
+  Implements Platform Trust Technology (FTPM) HECI SkuMgr Interface Library.
+
+@copyright
+  Copyright (c) 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
+
+**/
+
+#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
+#include "EdkIIGlueBase.h"
+#endif
+
+#ifdef PTT_FLAG
+#include "PttHeciLib.h"
+#include "HeciMsgLib.h"
+
+#define PTT_BITMASK   0x20000000 //BIT29
+
+#define CLEAR_PTT_BIT 0x00000000
+
+/**
+  Checks whether ME FW has the Platform Trust Technology capability.
+
+  @param[out] PttCapability      TRUE if PTT is supported, FALSE othewrwise.
+
+  @retval EFI_SUCCESS            Command succeeded
+  @retval EFI_DEVICE_ERROR       HECI Device error, command aborts abnormally
+**/
+EFI_STATUS
+EFIAPI
+PttHeciGetCapability(
+  OUT BOOLEAN   *PttCapability
+  )
+{
+  EFI_STATUS                Status;
+  GEN_GET_FW_CAPSKU         MsgGenGetFwCapsSku;
+  GEN_GET_FW_CAPS_SKU_ACK   MsgGenGetFwCapsSkuAck;
+
+  *PttCapability = FALSE;
+
+  Status = HeciGetFwCapsSkuMsg (&MsgGenGetFwCapsSku, &MsgGenGetFwCapsSkuAck);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (((MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.Command) == FWCAPS_GET_RULE_CMD) &&
+      ((MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.IsResponse) == 1) &&
+      (MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.Result == 0)
+      ) {
+
+      if (MsgGenGetFwCapsSkuAck.Data.FWCapSku.Fields.PTT) {
+        *PttCapability = TRUE;
+      }
+  }
+  DEBUG ((EFI_D_INFO, "PTT SkuMgr: PttCapability = %d\n", *PttCapability));
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Checks Platform Trust Technology enablement state.
+
+  @param[out] IsPttEnabledState  TRUE if PTT is enabled, FALSE othewrwise.
+
+  @retval EFI_SUCCESS            Command succeeded
+  @retval EFI_DEVICE_ERROR       HECI Device error, command aborts abnormally
+**/
+EFI_STATUS
+EFIAPI
+PttHeciGetState(
+  OUT BOOLEAN   *IsPttEnabledState
+  )
+{
+  EFI_STATUS      Status;
+  MEFWCAPS_SKU    CurrentFeatures;
+
+  *IsPttEnabledState = FALSE;
+
+  Status = HeciGetFwFeatureStateMsg (&CurrentFeatures);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (CurrentFeatures.Fields.PTT) {
+    *IsPttEnabledState = TRUE;
+  }
+
+  DEBUG ((EFI_D_INFO, "PTT SkuMgr: PttState = %d\n", *IsPttEnabledState));
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Changes current Platform Trust Technology state.
+
+  @param[in] PttEnabledState     TRUE to enable, FALSE to disable.
+
+  @retval EFI_SUCCESS            Command succeeded
+  @retval EFI_DEVICE_ERROR       HECI Device error, command aborts abnormally
+**/
+EFI_STATUS
+EFIAPI
+PttHeciSetState(
+  IN  BOOLEAN   PttEnabledState
+  )
+{
+  EFI_STATUS      Status;
+  UINT32          EnableBitmap;
+  UINT32          DisableBitmap;
+
+  if (PttEnabledState) {
+    //
+    // Enable PTT
+    //
+    DEBUG ((EFI_D_INFO, "PTT SkuMgr: Enable PTT\n"));
+    EnableBitmap  = PTT_BITMASK;
+    DisableBitmap = CLEAR_PTT_BIT;
+  } else {
+    //
+    // Disable PTT
+    //
+    DEBUG ((EFI_D_INFO, "PTT SkuMgr: Disable PTT\n"));
+    EnableBitmap  = CLEAR_PTT_BIT;
+    DisableBitmap = PTT_BITMASK;
+  }
+  Status = HeciFwFeatureStateOverride (EnableBitmap, DisableBitmap);
+
+  return Status;
+}
+
+#endif // PTT_FLAG