diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/Library/Tpm2DeviceLibSeCPei/Tpm2DeviceLibSeC.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/Library/Tpm2DeviceLibSeCPei/Tpm2DeviceLibSeC.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/Tpm2DeviceLibSeCPei/Tpm2DeviceLibSeC.c b/Vlv2TbltDevicePkg/Library/Tpm2DeviceLibSeCPei/Tpm2DeviceLibSeC.c new file mode 100644 index 0000000000..7386ea4646 --- /dev/null +++ b/Vlv2TbltDevicePkg/Library/Tpm2DeviceLibSeCPei/Tpm2DeviceLibSeC.c @@ -0,0 +1,151 @@ +/*++
+
+Copyright (c) 1999 - 2015, Intel Corporation. All rights reserved
+
+ 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 <Uefi.h>
+#include <PiPei.h>
+#include <Ppi/PttPassThruPpi.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PcdLib.h>
+
+
+
+
+
+
+PTT_PASS_THRU_PPI *SecPttPassThruPpi = NULL;
+
+/**
+ The constructor function caches the pointer to PEI services.
+
+ The constructor function caches the pointer to PEI services.
+ It will always return EFI_SUCCESS.
+
+ @param FfsHeader Pointer to FFS header the loaded driver.
+ @param PeiServices Pointer to the PEI services.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+Tpm2DeviceLibConstructor (
+ VOID
+ )
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+
+ Status = PeiServicesLocatePpi (&gPttPassThruPpiGuid, 0, NULL, (VOID **) &SecPttPassThruPpi);
+ if (EFI_ERROR (Status)) {
+ // Locate the PPI failed
+ SecPttPassThruPpi = NULL;
+ }
+ return Status;
+}
+
+/**
+ This service enables the sending of commands to the TPM2.
+
+ @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.
+ @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.
+ @param[in] OutputParameterBlockSize Size of the TPM2 output parameter block.
+ @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.
+
+ @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.
+ @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.
+ @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2SubmitCommand (
+ IN UINT32 InputParameterBlockSize,
+ IN UINT8 *InputParameterBlock,
+ IN OUT UINT32 *OutputParameterBlockSize,
+ IN UINT8 *OutputParameterBlock
+ )
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+
+ if(NULL == InputParameterBlock || NULL == OutputParameterBlock || 0 == InputParameterBlockSize) {
+ DEBUG ((EFI_D_ERROR, "Buffer == NULL or InputParameterBlockSize == 0\n"));
+ Status = EFI_INVALID_PARAMETER;
+ return Status;
+ }
+
+ if (NULL == SecPttPassThruPpi) {
+ // Don't locate PPI by calling Tpm2DeviceLibConstructor() function??
+ Status = EFI_DEVICE_ERROR;
+ return Status;
+ }
+
+ Status = SecPttPassThruPpi->Tpm2SubmitCommand (
+ SecPttPassThruPpi,
+ InputParameterBlockSize,
+ InputParameterBlock,
+ OutputParameterBlockSize,
+ OutputParameterBlock
+ );
+
+ return Status;
+}
+
+/**
+ This service requests use TPM2.
+
+ @retval EFI_SUCCESS Get the control of TPM2 chip.
+ @retval EFI_NOT_FOUND TPM2 not found.
+ @retval EFI_DEVICE_ERROR Unexpected device behavior.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RequestUseTpm (
+ VOID
+ )
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+
+ if (NULL == SecPttPassThruPpi) {
+ // Don't locate PPI by calling Tpm2DeviceLibConstructor() function??
+ Status = EFI_DEVICE_ERROR;
+ return Status;
+ }
+
+ Status = SecPttPassThruPpi->Tpm2RequestUseTpm (SecPttPassThruPpi);
+
+ return Status;
+}
+
+/**
+ This service register TPM2 device.
+
+ @Param Tpm2Device TPM2 device
+
+ @retval EFI_SUCCESS This TPM2 device is registered successfully.
+ @retval EFI_UNSUPPORTED System does not support register this TPM2 device.
+ @retval EFI_ALREADY_STARTED System already register this TPM2 device.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RegisterTpm2DeviceLib (
+ IN PTT_TPM2_DEVICE_INTERFACE *Tpm2Device
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+
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