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DynamicTablesPkg: AML Code generation to create a named ResourceTemplate() 

Add AmlCodeGenNameResourceTemplate() to generate code for a
ResourceTemplate().

AmlCodeGenNameResourceTemplate ("REST", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
  Name(REST, ResourceTemplate () {})

To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Pierre Gondois 2021-12-09 10:25:00 +01:00 committed by mergify[bot]
parent 0e7147fe75
commit fd5fc4bbb7
2 changed files with 84 additions and 0 deletions
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28
DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
View File

@ -863,6 +863,34 @@ AmlCodeGenNamePackage (
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a Name object node, containing a ResourceTemplate.
AmlCodeGenNameResourceTemplate ("PRS0", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(PRS0, ResourceTemplate () {})
@ingroup CodeGenApis
@param [in] NameString The new variable name.
Must be a NULL-terminated ASL NameString
e.g.: "DEV0", "DV15.DEV0", etc.
The input string is copied.
@param [in] ParentNode If provided, set ParentNode as the parent
of the node created.
@param [out] NewObjectNode If success, contains the created node.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameResourceTemplate (
IN CONST CHAR8 *NameString,
IN AML_NODE_HANDLE ParentNode, OPTIONAL
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is

56
DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
View File

@ -812,6 +812,62 @@ AmlCodeGenNamePackage (
return Status;
}
/** AML code generation for a Name object node, containing a ResourceTemplate.
AmlCodeGenNameResourceTemplate ("PRS0", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(PRS0, ResourceTemplate () {})
@param [in] NameString The new variable name.
Must be a NULL-terminated ASL NameString
e.g.: "DEV0", "DV15.DEV0", etc.
The input string is copied.
@param [in] ParentNode If provided, set ParentNode as the parent
of the node created.
@param [out] NewObjectNode If success, contains the created node.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameResourceTemplate (
IN CONST CHAR8 *NameString,
IN AML_NODE_HEADER *ParentNode, OPTIONAL
OUT AML_OBJECT_NODE **NewObjectNode OPTIONAL
)
{
EFI_STATUS Status;
AML_OBJECT_NODE *ResourceTemplateNode;
if ((NameString == NULL) ||
((ParentNode == NULL) && (NewObjectNode == NULL)))
{
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);
if (EFI_ERROR (Status)) {
ASSERT (0);
return Status;
}
Status = AmlCodeGenName (
NameString,
ResourceTemplateNode,
ParentNode,
NewObjectNode
);
if (EFI_ERROR (Status)) {
ASSERT (0);
AmlDeleteTree ((AML_NODE_HEADER *)ResourceTemplateNode);
}
return Status;
}
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is