/** @file\r
-PCD Library Class Interface Declarations\r
+PCD Library Class provides PCD usage macro interface for all PCD types. It should be \r
+included at any module who use PCD. \r
\r
-Copyright (c) 2006, Intel Corporation \r
+If module use dynamic/dynamicex PCD, module should be linked to PEIM/DXE library \r
+instance to access that PCD.\r
+If module uses PatchableInModule type PCD, also need library instance produce LibPatchPcdSetPtr()\r
+interface.\r
+For FeatureFlag/Fixed PCD, macro interface is translated to an variable or macro\r
+which is auto-generated by build tool in module's autogen.h/autogen.c\r
+\r
+Copyright (c) 2006 - 2008, Intel Corporation. <BR> \r
All rights reserved. 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
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
-Module Name: PcdLib.h\r
-\r
**/\r
\r
#ifndef __PCD_LIB_H__\r
#define __PCD_LIB_H__\r
\r
+#include <Base.h>\r
+\r
#define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)\r
\r
#define PcdToken(TokenName) _PCD_TOKEN_##TokenName\r
//\r
// Feature Flag is in the form of a global constant\r
//\r
-#define FeaturePcdGet(TokenName) _PCD_VALUE_##TokenName\r
+#define FeaturePcdGet(TokenName) _PCD_GET_MODE_BOOL_##TokenName\r
\r
\r
//\r
#define FixedPcdGetBool(TokenName) _PCD_VALUE_##TokenName\r
\r
\r
-//\r
-// BugBug: This works for strings, but not constants.\r
-//\r
#define FixedPcdGetPtr(TokenName) ((VOID *)_PCD_VALUE_##TokenName)\r
\r
\r
#define PatchPcdSet64(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
#define PatchPcdSetBool(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))\r
#define PatchPcdSetPtr(TokenName, Size, Buffer) \\r
- CopyMem (_gPcd_BinaryPatch_##TokenName, (Buffer), (Size))\r
+ LibPatchPcdSetPtr ( \\r
+ _gPcd_BinaryPatch_##TokenName, \\r
+ (UINTN)_PCD_PATCHABLE_##TokenName##_SIZE, \\r
+ (Size), \\r
+ (Buffer) \\r
+ )\r
\r
//\r
// Dynamic is via the protocol with only the TokenNumber as argument\r
Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.\r
\r
@param[in] SkuId The SKU value that will be used when the PCD service will retrieve and \r
- set values associated with a PCD token.\r
+ set values associated with a PCD token.\r
\r
@retval SKU_ID Return the SKU ID that just be set.\r
\r
/**\r
Returns the 8-bit value for the token specified by TokenNumber. \r
\r
- @param[in] The PCD token number to retrieve a current value for.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval UINT8 Returns the 8-bit value for the token specified by TokenNumber. \r
\r
/**\r
Returns the 16-bit value for the token specified by TokenNumber. \r
\r
- @param[in] The PCD token number to retrieve a current value for.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval UINT16 Returns the 16-bit value for the token specified by TokenNumber. \r
\r
Returns the 64-bit value for the token specified by TokenNumber and Guid.\r
If Guid is NULL, then ASSERT(). \r
\r
- @param[in] Guid Pointer to a 128-bit unique value that designates \r
- which namespace to retrieve a value from.\r
- @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates \r
+ which namespace to retrieve a value from.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval UINT64 Return the UINT64.\r
\r
Returns the pointer to the buffer of token specified by TokenNumber and Guid.\r
If Guid is NULL, then ASSERT(). \r
\r
- @param[in] Guid Pointer to a 128-bit unique value that designates \r
- which namespace to retrieve a value from.\r
- @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates \r
+ which namespace to retrieve a value from.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval VOID* Return the VOID* pointer.\r
\r
Returns the Boolean value of the token specified by TokenNumber and Guid. \r
If Guid is NULL, then ASSERT(). \r
\r
- @param[in] Guid Pointer to a 128-bit unique value that designates \r
- which namespace to retrieve a value from.\r
- @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates \r
+ which namespace to retrieve a value from.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval BOOLEAN Return the BOOLEAN.\r
\r
Returns the size of the token specified by TokenNumber and Guid. \r
If Guid is NULL, then ASSERT(). \r
\r
- @param[in] Guid Pointer to a 128-bit unique value that designates \r
- which namespace to retrieve a value from.\r
- @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates \r
+ which namespace to retrieve a value from.\r
+ @param[in] TokenNumber The PCD token number to retrieve a current value for.\r
\r
@retval UINTN Return the size.\r
\r
Sets the 8-bit value for the token specified by TokenNumber \r
to the value specified by Value. Value is returned.\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
+ @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
@retval UINT8 Return the value been set.\r
\r
Sets the 16-bit value for the token specified by TokenNumber \r
to the value specified by Value. Value is returned.\r
\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
+ @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
@retval UINT16 Return the value been set.\r
\r
Sets the 32-bit value for the token specified by TokenNumber \r
to the value specified by Value. Value is returned.\r
\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
+ @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
@retval UINT32 Return the value been set.\r
\r
Sets the 64-bit value for the token specified by TokenNumber \r
to the value specified by Value. Value is returned.\r
\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
+ @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
@retval UINT64 Return the value been set.\r
\r
If SizeOfValue is NULL, then ASSERT().\r
If SizeOfValue > 0 and Buffer is NULL, then ASSERT().\r
\r
- @param[in] TokenNumber The PCD token number to set a current value for.\r
- @param[in,out] SizeOfBuffer The size, in bytes, of Buffer.\r
- @param[in] Value A pointer to the buffer to set.\r
+ @param[in] TokenNumber The PCD token number to set a current value for.\r
+ @param[in,out] SizeOfBuffer The size, in bytes, of Buffer.\r
+ @param[in] Buffer Value A pointer to the buffer to set.\r
\r
@retval VOID* Return the pointer for the buffer been set.\r
\r
LibPcdSetPtr (\r
IN UINTN TokenNumber,\r
IN OUT UINTN *SizeOfBuffer,\r
- IN VOID *Value\r
+ IN VOID *Buffer\r
);\r
\r
\r
Sets the Boolean value for the token specified by TokenNumber \r
to the value specified by Value. Value is returned.\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
+ @param[in] TokenNumber The PCD token number to set a current value for.\r
+ @param[in] Value The boolean value to set.\r
\r
@retval BOOLEAN Return the value been set.\r
\r
Guid to the value specified by Value. Value is returned.\r
If Guid is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\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
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\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
@retval UINT8 Return the value been set.\r
\r
Guid to the value specified by Value. Value is returned.\r
If Guid is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\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
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\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
@retval UINT8 Return the value been set.\r
\r
Guid to the value specified by Value. Value is returned.\r
If Guid is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\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
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\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
@retval UINT32 Return the value been set.\r
\r
Guid to the value specified by Value. Value is returned.\r
If Guid is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\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
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\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
@retval UINT64 Return the value been set.\r
\r
If SizeOfValue is NULL, then ASSERT().\r
If SizeOfValue > 0 and Buffer is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\r
- @param[in] TokenNumber The PCD token number to set a current value for.\r
- @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
- @param[in] Buffer A pointer to the buffer to set.\r
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\r
+ @param[in] TokenNumber The PCD token number to set a current value for.\r
+ @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.\r
+ @param[in] Buffer A pointer to the buffer to set.\r
\r
@retval VOID * Return the pinter to the buffer been set.\r
\r
Guid to the value specified by Value. Value is returned.\r
If Guid is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that \r
- designates which namespace to set a value from.\r
- @param[in] TokenNumber The PCD token number to set a current value for.\r
- @param[in] Value The Boolean value to set.\r
+ @param[in] Guid Pointer to a 128-bit unique value that \r
+ designates which namespace to set a value from.\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
@retval Boolean Return the value been set.\r
\r
If Guid is NULL, then the default token space is used. \r
If NotificationFunction is NULL, then ASSERT().\r
\r
- @param[in] CallBackGuid The PCD token GUID being set.\r
- @param[in] CallBackToken The PCD token number being set.\r
- @param[in] TokenData A pointer to the token data being set.\r
- @param[in] TokenDataSize The size, in bytes, of the data being set.\r
+ This notification function serves two purposes. Firstly, it notifies the module which \r
+ did the registration that the value of this PCD token has been set. Secondly, \r
+ it provides a mechanism for the module which did the registration to intercept \r
+ the set operation and override the value been set if necessary. After the invocation \r
+ of the callback function, TokenData will be used by PCD service PEIM or driver to \r
+ modify the internal data in PCD database. \r
+\r
\r
- @retval VOID\r
+ @param[in] CallBackGuid The PCD token GUID being set.\r
+ @param[in] CallBackToken The PCD token number being set.\r
+ @param[in, out] TokenData A pointer to the token data being set.\r
+ @param[in] TokenDataSize The size, in bytes, of the data being set.\r
\r
**/\r
typedef\r
VOID\r
-(EFIAPI *PCD_CALLBACK) (\r
+(EFIAPI *PCD_CALLBACK)(\r
IN CONST GUID *CallBackGuid, OPTIONAL\r
IN UINTN CallBackToken,\r
IN OUT VOID *TokenData,\r
If Guid is NULL, then the default token space is used. \r
If NotificationFunction is NULL, then ASSERT().\r
\r
- @param[in] Guid Pointer to a 128-bit unique value that designates which \r
- namespace to set a value from. If NULL, then the default \r
- token space is used.\r
- @param[in] TokenNumber The PCD token number to monitor.\r
- @param[in] NotificationFunction The function to call when the token \r
- specified by Guid and TokenNumber is set.\r
-\r
- @retval VOID\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates which \r
+ namespace to set a value from. If NULL, then the default \r
+ token space is used.\r
+ @param[in] TokenNumber The PCD token number to monitor.\r
+ @param[in] NotificationFunction The function to call when the token \r
+ specified by Guid and TokenNumber is set.\r
\r
**/\r
VOID\r
/**\r
Disable a notification function that was established with LibPcdCallbackonSet().\r
\r
- @param[in] Guid Specify the GUID token space.\r
- @param[in] TokenNumber Specify the token number.\r
+ @param[in] Guid Specify the GUID token space.\r
+ @param[in] TokenNumber Specify the token number.\r
@param[in] NotificationFunction The callback function to be unregistered.\r
\r
- @retval VOID\r
-\r
**/\r
VOID\r
EFIAPI\r
token number in the token space, then 0 is returned. If TokenNumber is not 0 and \r
is not in the token space specified by Guid, then ASSERT().\r
\r
- @param[in] Pointer to a 128-bit unique value that designates which namespace \r
- to set a value from. If NULL, then the default token space is used.\r
- @param[in] The previous PCD token number. If 0, then retrieves the first PCD \r
- token number.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates which namespace \r
+ to set a value from. If NULL, then the default token space is used.\r
+ @param[in] TokenNumber The previous PCD token number. If 0, then retrieves the first PCD \r
+ token number.\r
\r
@retval UINTN The next valid token number.\r
\r
\r
\r
\r
- @param[in] Pointer to a 128-bit unique value that designates from which namespace \r
- to start the search.\r
+ @param[in] Guid Pointer to a 128-bit unique value that designates from which namespace \r
+ to start the search.\r
\r
@retval CONST GUID * The next valid token namespace.\r
\r
**/\r
-\r
GUID * \r
EFIAPI\r
LibPcdGetNextTokenSpace (\r
IN CONST GUID *Guid\r
);\r
\r
+\r
+/**\r
+ Sets the PCD entry specified by PatchVariable to the value specified by Buffer \r
+ and SizeOfValue. Buffer is returned. If SizeOfValue is greater than \r
+ MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return \r
+ NULL to indicate that the set operation was not actually performed. \r
+ If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to \r
+ MaximumDatumSize and NULL must be returned.\r
+ \r
+ If PatchVariable is NULL, then ASSERT().\r
+ If SizeOfValue is NULL, then ASSERT().\r
+ If SizeOfValue > 0 and Buffer is NULL, then ASSERT().\r
+\r
+ @param[in] PatchVariable A pointer to the global variable in a module that is \r
+ the target of the set operation.\r
+ @param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.\r
+ @param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.\r
+ @param[in] Buffer A pointer to the buffer to used to set the target variable.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+LibPatchPcdSetPtr (\r
+ IN VOID *PatchVariable,\r
+ IN UINTN MaximumDatumSize,\r
+ IN OUT UINTN *SizeOfBuffer,\r
+ IN CONST VOID *Buffer\r
+ );\r
+\r
#endif\r
projects / mirror_edk2.git / blobdiff