+/** @file\r
+ Implement TPM1.2 Get Capabilities related commands.\r
+\r
+Copyright (c) 2016, Intel Corporation. All rights reserved. <BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <PiPei.h>\r
+#include <Library/Tpm12CommandLib.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/Tpm12DeviceLib.h>\r
+\r
+#pragma pack(1)\r
+\r
+typedef struct {\r
+ TPM_RQU_COMMAND_HDR Hdr;\r
+ UINT32 Capability;\r
+ UINT32 CapabilityFlagSize;\r
+ UINT32 CapabilityFlag;\r
+} TPM_CMD_GET_CAPABILITY;\r
+\r
+typedef struct {\r
+ TPM_RSP_COMMAND_HDR Hdr;\r
+ UINT32 ResponseSize;\r
+ TPM_PERMANENT_FLAGS Flags;\r
+} TPM_RSP_GET_CAPABILITY_PERMANENT_FLAGS;\r
+\r
+typedef struct {\r
+ TPM_RSP_COMMAND_HDR Hdr;\r
+ UINT32 ResponseSize;\r
+ TPM_STCLEAR_FLAGS Flags;\r
+} TPM_RSP_GET_CAPABILITY_STCLEAR_FLAGS;\r
+\r
+#pragma pack()\r
+\r
+/**\r
+Get TPM capability permanent flags.\r
+\r
+@param[out] TpmPermanentFlags Pointer to the buffer for returned flag structure.\r
+\r
+@retval EFI_SUCCESS Operation completed successfully.\r
+@retval EFI_TIMEOUT The register can't run into the expected status in time.\r
+@retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.\r
+@retval EFI_DEVICE_ERROR Unexpected device behavior.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+Tpm12GetCapabilityFlagPermanent (\r
+ OUT TPM_PERMANENT_FLAGS *TpmPermanentFlags\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ TPM_CMD_GET_CAPABILITY Command;\r
+ TPM_RSP_GET_CAPABILITY_PERMANENT_FLAGS Response;\r
+ UINT32 Length;\r
+\r
+ //\r
+ // send Tpm command TPM_ORD_GetCapability\r
+ //\r
+ Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
+ Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r
+ Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_GetCapability);\r
+ Command.Capability = SwapBytes32 (TPM_CAP_FLAG);\r
+ Command.CapabilityFlagSize = SwapBytes32 (sizeof (TPM_CAP_FLAG_PERMANENT));\r
+ Command.CapabilityFlag = SwapBytes32 (TPM_CAP_FLAG_PERMANENT);\r
+ Length = sizeof (Response);\r
+ Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ ZeroMem (TpmPermanentFlags, sizeof (*TpmPermanentFlags));\r
+ CopyMem (TpmPermanentFlags, &Response.Flags, MIN (sizeof (*TpmPermanentFlags), Response.ResponseSize));\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+Get TPM capability volatile flags.\r
+\r
+@param[out] VolatileFlags Pointer to the buffer for returned flag structure.\r
+\r
+@retval EFI_SUCCESS Operation completed successfully.\r
+@retval EFI_DEVICE_ERROR The command was unsuccessful.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+Tpm12GetCapabilityFlagVolatile (\r
+ OUT TPM_STCLEAR_FLAGS *VolatileFlags\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ TPM_CMD_GET_CAPABILITY Command;\r
+ TPM_RSP_GET_CAPABILITY_STCLEAR_FLAGS Response;\r
+ UINT32 Length;\r
+\r
+ //\r
+ // send Tpm command TPM_ORD_GetCapability\r
+ //\r
+ Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
+ Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r
+ Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_GetCapability);\r
+ Command.Capability = SwapBytes32 (TPM_CAP_FLAG);\r
+ Command.CapabilityFlagSize = SwapBytes32 (sizeof (TPM_CAP_FLAG_VOLATILE));\r
+ Command.CapabilityFlag = SwapBytes32 (TPM_CAP_FLAG_VOLATILE);\r
+ Length = sizeof (Response);\r
+ Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ ZeroMem (VolatileFlags, sizeof (*VolatileFlags));\r
+ CopyMem (VolatileFlags, &Response.Flags, MIN (sizeof (*VolatileFlags), Response.ResponseSize));\r
+\r
+ return Status;\r
+}\r