1 /*++ 2 3 Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR> 4 5 This program and the accompanying materials are licensed and made available under 6 the terms and conditions of the BSD License that accompanies this distribution. 7 The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 --*/ 14 15 #ifndef _EFI_PTT_PASS_THRU_PPI_H 16 #define _EFI_PTT_PASS_THRU_PPI_H 17 18 #define PTT_PASS_THRU_PPI_GUID \ 19 { \ 20 0xc5068bac, 0xa7dc, 0x42f1, 0xae, 0x80, 0xca, 0xa2, 0x4b, 0xb4, 0x90, 0x4b \ 21 } 22 // {C5068BAC-A7DC-42f1-AE80-CAA24BB4904B} 23 //static const GUID <<name>> = 24 //{ 0xc5068bac, 0xa7dc, 0x42f1, { 0xae, 0x80, 0xca, 0xa2, 0x4b, 0xb4, 0x90, 0x4b } }; 25 26 27 28 //#define EFI_PTT_PROTOCOL_GUID HECI_PROTOCOL_GUID 29 30 typedef struct _PTT_PASS_THRU_PPI PTT_PASS_THRU_PPI; 31 32 /** 33 This service enables the sending of commands to the TPM2. 34 35 @param[in] InputParameterBlockSize Size of the TPM2 input parameter block. 36 @param[in] InputParameterBlock Pointer to the TPM2 input parameter block. 37 @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block. 38 @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block. 39 40 @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received. 41 @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device. 42 @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small. 43 **/ 44 typedef 45 EFI_STATUS 46 (EFIAPI *TPM2_SUBMIT_COMMAND) ( 47 IN PTT_PASS_THRU_PPI *This, 48 IN UINT32 InputParameterBlockSize, 49 IN UINT8 *InputParameterBlock, 50 IN OUT UINT32 *OutputParameterBlockSize, 51 IN UINT8 *OutputParameterBlock 52 ); 53 54 /** 55 This service requests use TPM2. 56 57 @retval EFI_SUCCESS Get the control of TPM2 chip. 58 @retval EFI_NOT_FOUND TPM2 not found. 59 @retval EFI_DEVICE_ERROR Unexpected device behavior. 60 **/ 61 typedef 62 EFI_STATUS 63 (EFIAPI *TPM2_REQUEST_USE_TPM) ( 64 IN PTT_PASS_THRU_PPI *This 65 ); 66 67 typedef struct { 68 EFI_GUID ProviderGuid; 69 TPM2_SUBMIT_COMMAND Tpm2SubmitCommand; 70 TPM2_REQUEST_USE_TPM Tpm2RequestUseTpm; 71 } PTT_TPM2_DEVICE_INTERFACE; 72 73 74 /** 75 This service register TPM2 device. 76 77 @param Tpm2Device TPM2 device 78 79 @retval EFI_SUCCESS This TPM2 device is registered successfully. 80 @retval EFI_UNSUPPORTED System does not support register this TPM2 device. 81 @retval EFI_ALREADY_STARTED System already register this TPM2 device. 82 **/ 83 typedef 84 EFI_STATUS 85 (EFIAPI *TPM2_REGISTER_TPM2_DEVICE_LIB) ( 86 IN PTT_PASS_THRU_PPI *This, 87 IN PTT_TPM2_DEVICE_INTERFACE *Tpm2Device 88 ); 89 90 typedef struct _PTT_PASS_THRU_PPI { 91 TPM2_SUBMIT_COMMAND Tpm2SubmitCommand; 92 TPM2_REQUEST_USE_TPM Tpm2RequestUseTpm; 93 TPM2_REGISTER_TPM2_DEVICE_LIB Tpm2RegisterTpm2DeviceLib; 94 } PTT_PASS_THRU_PPI; 95 96 extern EFI_GUID gPttPassThruPpiGuid; 97 98 #endif // _EFI_HECI_H 99
