/** @file\r
Implementation of PcdLib class library for DXE phase.\r
\r
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2013, 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
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/BaseMemoryLib.h>\r
\r
-PCD_PROTOCOL *mPcd = NULL;\r
+PCD_PROTOCOL *mPcd = NULL;\r
EFI_PCD_PROTOCOL *mPiPcd = NULL;\r
\r
/**\r
- The constructor function caches the PCD_PROTOCOL pointer.\r
+ Retrieves the PI PCD protocol from the handle database.\r
+**/\r
+EFI_PCD_PROTOCOL *\r
+EFIAPI\r
+GetPiPcdProtocol (\r
+ VOID\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
\r
- @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
- @param[in] SystemTable A pointer to the EFI System Table.\r
- \r
- @retval EFI_SUCCESS The constructor always return EFI_SUCCESS.\r
+ if (mPiPcd == NULL) {\r
+ //\r
+ // PI Pcd protocol defined in PI 1.2 vol3 should be installed before the module \r
+ // access DynamicEx type PCD.\r
+ //\r
+ Status = gBS->LocateProtocol (&gEfiPcdProtocolGuid, NULL, (VOID **) &mPiPcd);\r
+ ASSERT_EFI_ERROR (Status);\r
+ ASSERT (mPiPcd != NULL);\r
+ }\r
+ return mPiPcd;\r
+}\r
\r
+/**\r
+ Retrieves the PCD protocol from the handle database.\r
**/\r
-EFI_STATUS\r
+PCD_PROTOCOL *\r
EFIAPI\r
-PcdLibConstructor (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
+GetPcdProtocol (\r
+ VOID\r
)\r
{\r
EFI_STATUS Status;\r
\r
- //\r
- // PCD protocol need to be installed before the module access Dynamic type PCD.\r
- // But dynamic type PCD is not required in PI 1.2 specification.\r
- // \r
- gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);\r
- \r
- //\r
- // PI Pcd protocol defined in PI 1.2 vol3 should be installed before the module \r
- // access DynamicEx type PCD.\r
- //\r
- Status = gBS->LocateProtocol (&gEfiPcdProtocolGuid, NULL, (VOID **) &mPiPcd);\r
- \r
- ASSERT_EFI_ERROR (Status);\r
- ASSERT (mPiPcd!= NULL);\r
-\r
- return Status;\r
+ if (mPcd == NULL) {\r
+ //\r
+ // PCD protocol need to be installed before the module access Dynamic type PCD.\r
+ // But dynamic type PCD is not required in PI 1.2 specification.\r
+ // \r
+ Status = gBS->LocateProtocol (&gPcdProtocolGuid, NULL, (VOID **)&mPcd);\r
+ ASSERT_EFI_ERROR (Status);\r
+ ASSERT (mPcd != NULL);\r
+ }\r
+ return mPcd;\r
}\r
\r
\r
IN UINTN SkuId\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
ASSERT (SkuId < PCD_MAX_SKU_ID);\r
\r
- mPcd->SetSku (SkuId);\r
+ GetPcdProtocol()->SetSku (SkuId);\r
\r
return SkuId;\r
}\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->Get8 (TokenNumber);\r
+ return GetPcdProtocol()->Get8 (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->Get16 (TokenNumber);\r
+ return GetPcdProtocol()->Get16 (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->Get32 (TokenNumber);\r
+ return GetPcdProtocol()->Get32 (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->Get64 (TokenNumber);\r
+ return GetPcdProtocol()->Get64 (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->GetPtr (TokenNumber);\r
+ return GetPcdProtocol()->GetPtr (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->GetBool (TokenNumber);\r
+ return GetPcdProtocol()->GetBool (TokenNumber);\r
}\r
\r
\r
IN UINTN TokenNumber\r
)\r
{\r
- ASSERT (mPcd != NULL);\r
- return mPcd->GetSize (TokenNumber);\r
+ return GetPcdProtocol()->GetSize (TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->Get8 (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->Get8 (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->Get16 (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->Get16 (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->Get32 (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->Get32 (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->Get64 (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->Get64 (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->GetPtr (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->GetPtr (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->GetBool (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->GetBool (Guid, TokenNumber);\r
}\r
\r
\r
{\r
ASSERT (Guid != NULL);\r
\r
- return mPiPcd->GetSize (Guid, TokenNumber);\r
+ return GetPiPcdProtocol()->GetSize (Guid, TokenNumber);\r
}\r
\r
\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 8-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT8\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
- Status = mPcd->Set8 (TokenNumber, Value);\r
-\r
+ Status = GetPcdProtocol()->Set8 (TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 16-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT16\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
- Status = mPcd->Set16 (TokenNumber, Value);\r
-\r
+ Status = GetPcdProtocol()->Set16 (TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 32-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT32\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
- Status = mPcd->Set32 (TokenNumber, Value);\r
-\r
+ Status = GetPcdProtocol()->Set32 (TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 64-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT64\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
- Status = mPcd->Set64 (TokenNumber, Value);\r
-\r
+ Status = GetPcdProtocol()->Set64 (TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
ASSERT (SizeOfBuffer != NULL);\r
\r
if (*SizeOfBuffer > 0) {\r
ASSERT (Buffer != NULL);\r
}\r
\r
- Status = mPcd->SetPtr (TokenNumber, SizeOfBuffer, (VOID *) Buffer);\r
-\r
+ Status = GetPcdProtocol()->SetPtr (TokenNumber, SizeOfBuffer, (VOID *) Buffer);\r
if (EFI_ERROR (Status)) {\r
return NULL;\r
}\r
\r
- return (VOID *) Buffer;\r
+ return (VOID *)Buffer;\r
}\r
\r
\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The boolean value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
BOOLEAN\r
{\r
EFI_STATUS Status;\r
\r
- ASSERT (mPcd != NULL);\r
- Status = mPcd->SetBool (TokenNumber, Value);\r
-\r
+ Status = GetPcdProtocol()->SetBool (TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 8-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT8\r
\r
ASSERT (Guid != NULL);\r
\r
- Status = mPiPcd->Set8 (Guid, TokenNumber, Value);\r
-\r
+ Status = GetPiPcdProtocol()->Set8 (Guid, TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 16-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT16\r
\r
ASSERT (Guid != NULL);\r
\r
- Status = mPiPcd->Set16 (Guid, TokenNumber, Value);\r
-\r
+ Status = GetPiPcdProtocol()->Set16 (Guid, TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 32-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT32\r
\r
ASSERT (Guid != NULL);\r
\r
- Status = mPiPcd->Set32 (Guid, TokenNumber, Value);\r
-\r
+ Status = GetPiPcdProtocol()->Set32 (Guid, TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The 64-bit value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
UINT64\r
\r
ASSERT (Guid != NULL);\r
\r
- Status = mPiPcd->Set64 (Guid, TokenNumber, Value);\r
-\r
+ Status = GetPiPcdProtocol()->Set64 (Guid, TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
@param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
@param[in] Buffer A pointer to the buffer to set.\r
\r
- @return Return the pinter to the buffer been set.\r
+ @return Return the pointer to the buffer been set.\r
\r
**/\r
VOID *\r
ASSERT (Buffer != NULL);\r
}\r
\r
- Status = mPiPcd->SetPtr (Guid, TokenNumber, SizeOfBuffer, Buffer);\r
-\r
+ Status = GetPiPcdProtocol()->SetPtr (Guid, TokenNumber, SizeOfBuffer, Buffer);\r
if (EFI_ERROR (Status)) {\r
return NULL;\r
}\r
@param[in] TokenNumber The PCD token number to set a current value for.\r
@param[in] Value The Boolean value to set.\r
\r
- @return Return the value been set.\r
+ @return Return the value that was set.\r
\r
**/\r
BOOLEAN\r
\r
ASSERT (Guid != NULL);\r
\r
- Status = mPiPcd->SetBool (Guid, TokenNumber, Value);\r
-\r
+ Status = GetPiPcdProtocol()->SetBool (Guid, TokenNumber, Value);\r
ASSERT_EFI_ERROR (Status);\r
\r
return Value;\r
\r
ASSERT (NotificationFunction != NULL);\r
\r
- Status = mPiPcd->CallbackOnSet (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r
-\r
+ Status = GetPiPcdProtocol()->CallbackOnSet (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r
ASSERT_EFI_ERROR (Status);\r
\r
return;\r
\r
ASSERT (NotificationFunction != NULL);\r
\r
- Status = mPiPcd->CancelCallback (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r
-\r
+ Status = GetPiPcdProtocol()->CancelCallback (Guid, TokenNumber, (EFI_PCD_PROTOCOL_CALLBACK) NotificationFunction);\r
ASSERT_EFI_ERROR (Status);\r
\r
return;\r
IN UINTN TokenNumber\r
)\r
{\r
- EFI_STATUS Status;\r
-\r
- Status = mPiPcd->GetNextToken (Guid, &TokenNumber);\r
-\r
- ASSERT_EFI_ERROR (Status);\r
+ GetPiPcdProtocol()->GetNextToken (Guid, &TokenNumber);\r
\r
return TokenNumber;\r
}\r
If TokenSpaceGuid is NULL, then a pointer to the first PCD token spaces returned.\r
If TokenSpaceGuid is the last PCD token space GUID in the list, then NULL is returned.\r
\r
- @param TokenSpaceGuid The pointer to the a PCD token space GUID\r
+ @param TokenSpaceGuid The pointer to the a PCD token space GUID.\r
\r
@return The next valid token namespace.\r
\r
IN CONST GUID *TokenSpaceGuid\r
)\r
{\r
- EFI_STATUS Status;\r
-\r
- Status = mPiPcd->GetNextTokenSpace (&TokenSpaceGuid);\r
-\r
- ASSERT_EFI_ERROR (Status);\r
+ GetPiPcdProtocol()->GetNextTokenSpace (&TokenSpaceGuid);\r
\r
- return (GUID *) TokenSpaceGuid;\r
+ return (GUID *)TokenSpaceGuid;\r
}\r
\r
\r
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