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system76-edk2/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
Jeff Brasen 58350c0055 DynamicTablesPkg: AML Code generation to add _CPC entries 
_CPC entries can describe CPU performance information.
The object is described in ACPI 6.4 s8.4.7.1.
"_CPC (Continuous Performance Control)".

Add AmlCreateCpcNode() helper function to add _CPC entries to an
existing CPU object.

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-09-23 17:21:36 +00:00

1532 lines
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/** @file
AML Lib.
Copyright (c) 2019 - 2021, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef AML_LIB_H_
#define AML_LIB_H_
/**
@mainpage Dynamic AML Generation
@{
@par Summary
@{
ACPI tables are categorized as data tables and definition block
tables. Dynamic Tables Framework currently supports generation of ACPI
data tables. Generation of definition block tables is difficult as these
tables are encoded in ACPI Machine Language (AML), which has a complex
grammar.
Dynamic AML Generation is an extension to the Dynamic tables Framework.
One of the techniques used to simplify definition block generation is to
fixup a template SSDT table.
Dynamic AML aims to provide a framework that allows fixing up of an ACPI
SSDT template with appropriate information about the hardware.
This framework consists of an:
- AMLLib core that implements a rich set of interfaces to parse, traverse
and update AML data.
- AMLLib library APIs that provides interfaces to search and updates nodes
in the AML namespace.
@}
@}
*/
#include <AmlCpcInfo.h>
#include <IndustryStandard/Acpi.h>
#ifndef AML_HANDLE
/** Node handle.
*/
typedef void *AML_NODE_HANDLE;
/** Root Node handle.
*/
typedef void *AML_ROOT_NODE_HANDLE;
/** Object Node handle.
*/
typedef void *AML_OBJECT_NODE_HANDLE;
/** Data Node handle.
*/
typedef void *AML_DATA_NODE_HANDLE;
#endif // AML_HANDLE
/** Parse the definition block.
The function parses the whole AML blob. It starts with the ACPI DSDT/SSDT
header and then parses the AML bytestream.
A tree structure is returned via the RootPtr.
The tree must be deleted with the AmlDeleteTree function.
@ingroup UserApis
@param [in] DefinitionBlock Pointer to the definition block.
@param [out] RootPtr Pointer to the root node of the AML tree.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_BUFFER_TOO_SMALL No space left in the buffer.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlParseDefinitionBlock (
IN CONST EFI_ACPI_DESCRIPTION_HEADER *DefinitionBlock,
OUT AML_ROOT_NODE_HANDLE *RootPtr
);
/** Serialize an AML definition block.
This functions allocates memory with the "AllocateZeroPool ()"
function. This memory is used to serialize the AML tree and is
returned in the Table.
@ingroup UserApis
@param [in] RootNode Root node of the tree.
@param [out] Table On return, hold the serialized
definition block.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlSerializeDefinitionBlock (
IN AML_ROOT_NODE_HANDLE RootNode,
OUT EFI_ACPI_DESCRIPTION_HEADER **Table
);
/** Clone a node and its children (clone a tree branch).
The cloned branch returned is not attached to any tree.
@ingroup UserApis
@param [in] Node Pointer to a node.
Node is the head of the branch to clone.
@param [out] ClonedNode Pointer holding the head of the created cloned
branch.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCloneTree (
IN AML_NODE_HANDLE Node,
OUT AML_NODE_HANDLE *ClonedNode
);
/** Delete a Node and its children.
The Node must be removed from the tree first,
or must be the root node.
@ingroup UserApis
@param [in] Node Pointer to the node to delete.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDeleteTree (
IN AML_NODE_HANDLE Node
);
/** Detach the Node from the tree.
The function will fail if the Node is in its parent's fixed
argument list.
The Node is not deleted. The deletion is done separately
from the removal.
@ingroup UserApis
@param [in] Node Pointer to a Node.
Must be a data node or an object node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDetachNode (
IN AML_NODE_HANDLE Node
);
/** Attach a node in an AML tree.
The node will be added as the last statement of the ParentNode.
E.g.:
ASL code corresponding to NewNode:
Name (_UID, 0)
ASL code corresponding to ParentNode:
Device (PCI0) {
Name(_HID, EISAID("PNP0A08"))
}
"AmlAttachNode (ParentNode, NewNode)" will result in:
ASL code:
Device (PCI0) {
Name(_HID, EISAID("PNP0A08"))
Name (_UID, 0)
}
@param [in] ParentNode Pointer to the parent node.
Must be a root or an object node.
@param [in] NewNode Pointer to the node to add.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlAttachNode (
IN AML_NODE_HANDLE ParentNode,
IN AML_NODE_HANDLE NewNode
);
/** Find a node in the AML namespace, given an ASL path and a reference Node.
- The AslPath can be an absolute path, or a relative path from the
reference Node;
- Node must be a root node or a namespace node;
- A root node is expected to be at the top of the tree.
E.g.:
For the following AML namespace, with the ReferenceNode being the node with
the name "AAAA":
- the node with the name "BBBB" can be found by looking for the ASL
path "BBBB";
- the root node can be found by looking for the ASL relative path "^",
or the absolute path "\\".
AML namespace:
\
\-AAAA <- ReferenceNode
\-BBBB
@ingroup NameSpaceApis
@param [in] ReferenceNode Reference node.
If a relative path is given, the
search is done from this node. If
an absolute path is given, the
search is done from the root node.
Must be a root node or an object
node which is part of the
namespace.
@param [in] AslPath ASL path to the searched node in
the namespace. An ASL path name is
NULL terminated. Can be a relative
or absolute path.
E.g.: "\\_SB.CLU0.CPU0" or "^CPU0"
@param [out] OutNode Pointer to the found node.
Contains NULL if not found.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_BUFFER_TOO_SMALL No space left in the buffer.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of memory.
**/
EFI_STATUS
EFIAPI
AmlFindNode (
IN AML_NODE_HANDLE ReferenceNode,
IN CHAR8 *AslPath,
OUT AML_NODE_HANDLE *OutNode
);
/**
@defgroup UserApis User APIs
@{
User APIs are implemented to ease most common actions that might be done
using the AmlLib. They allow to find specific objects like "_UID" or
"_CRS" and to update their value. It also shows what can be done using
AmlLib functions.
@}
*/
/** Update the name of a DeviceOp object node.
@ingroup UserApis
@param [in] DeviceOpNode Object node representing a Device.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
OpCode/SubOpCode.
DeviceOp object nodes are defined in ASL
using the "Device ()" function.
@param [in] NewNameString The new Device's name.
Must be a NULL-terminated ASL NameString
e.g.: "DEV0", "DV15.DEV0", etc.
The input string is copied.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDeviceOpUpdateName (
IN AML_OBJECT_NODE_HANDLE DeviceOpNode,
IN CHAR8 *NewNameString
);
/** Update an integer value defined by a NameOp object node.
For compatibility reasons, the NameOpNode must initially
contain an integer.
@ingroup UserApis
@param [in] NameOpNode NameOp object node.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
NameOp object nodes are defined in ASL
using the "Name ()" function.
@param [in] NewInt New Integer value to assign.
Must be a UINT64.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpUpdateInteger (
IN AML_OBJECT_NODE_HANDLE NameOpNode,
IN UINT64 NewInt
);
/** Update a string value defined by a NameOp object node.
The NameOpNode must initially contain a string.
The EISAID ASL macro converts a string to an integer. This, it is
not accepted.
@ingroup UserApis
@param [in] NameOpNode NameOp object node.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
NameOp object nodes are defined in ASL
using the "Name ()" function.
@param [in] NewName New NULL terminated string to assign to
the NameOpNode.
The input string is copied.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpUpdateString (
IN AML_OBJECT_NODE_HANDLE NameOpNode,
IN CONST CHAR8 *NewName
);
/** Get the first Resource Data element contained in a named object.
In the following ASL code, the function will return the Resource Data
node corresponding to the "QWordMemory ()" ASL macro.
Name (_CRS, ResourceTemplate() {
QWordMemory (...) {...},
Interrupt (...) {...}
}
)
Note:
"_CRS" names defined as methods are not handled by this function.
They must be defined as names, using the "Name ()" statement.
@ingroup UserApis
@param [in] NameOpNode NameOp object node defining a named object.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
NameOp object nodes are defined in ASL
using the "Name ()" function.
@param [out] OutRdNode Pointer to the first Resource Data element of
the named object. A Resource Data element
is stored in a data node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpGetFirstRdNode (
IN AML_OBJECT_NODE_HANDLE NameOpNode,
OUT AML_DATA_NODE_HANDLE *OutRdNode
);
/** Get the Resource Data element following the CurrRdNode Resource Data.
In the following ASL code, if CurrRdNode corresponds to the first
"QWordMemory ()" ASL macro, the function will return the Resource Data
node corresponding to the "Interrupt ()" ASL macro.
Name (_CRS, ResourceTemplate() {
QwordMemory (...) {...},
Interrupt (...) {...}
}
)
Note:
"_CRS" names defined as methods are not handled by this function.
They must be defined as names, using the "Name ()" statement.
@ingroup UserApis
@param [in] CurrRdNode Pointer to the current Resource Data element of
the named object.
@param [out] OutRdNode Pointer to the Resource Data element following
the CurrRdNode.
Contain a NULL pointer if CurrRdNode is the
last Resource Data element in the list.
The "End Tag" is not considered as a resource
data element and is not returned.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpGetNextRdNode (
IN AML_DATA_NODE_HANDLE CurrRdNode,
OUT AML_DATA_NODE_HANDLE *OutRdNode
);
/** Update the first interrupt of an Interrupt resource data node.
The flags of the Interrupt resource data are left unchanged.
The InterruptRdNode corresponds to the Resource Data created by the
"Interrupt ()" ASL macro. It is an Extended Interrupt Resource Data.
See ACPI 6.3 specification, s6.4.3.6 "Extended Interrupt Descriptor"
for more information about Extended Interrupt Resource Data.
@ingroup UserApis
@param [in] InterruptRdNode Pointer to the an extended interrupt
resource data node.
@param [in] Irq Interrupt value to update.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdInterrupt (
IN AML_DATA_NODE_HANDLE InterruptRdNode,
IN UINT32 Irq
);
/** Update the base address and length of a QWord resource data node.
@ingroup UserApis
@param [in] QWordRdNode Pointer a QWord resource data
node.
@param [in] BaseAddress Base address.
@param [in] BaseAddressLength Base address length.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdQWord (
IN AML_DATA_NODE_HANDLE QWordRdNode,
IN UINT64 BaseAddress,
IN UINT64 BaseAddressLength
);
/** Code generation for the "DWordIO ()" ASL function.
The Resource Data effectively created is a DWord Address Space Resource
Data. Cf ACPI 6.4:
- s6.4.3.5.2 "DWord Address Space Descriptor".
- s19.6.34 "DWordIO".
The created resource data node can be:
- appended to the list of resource data elements of the NameOpNode.
In such case NameOpNode must be defined by a the "Name ()" ASL statement
and initially contain a "ResourceTemplate ()".
- returned through the NewRdNode parameter.
See ACPI 6.4 spec, s19.6.34 for more.
@param [in] IsResourceConsumer ResourceUsage parameter.
@param [in] IsMinFixed Minimum address is fixed.
@param [in] IsMaxFixed Maximum address is fixed.
@param [in] IsPosDecode Decode parameter
@param [in] IsaRanges Possible values are:
0-Reserved
1-NonISAOnly
2-ISAOnly
3-EntireRange
@param [in] AddressGranularity Address granularity.
@param [in] AddressMinimum Minimum address.
@param [in] AddressMaximum Maximum address.
@param [in] AddressTranslation Address translation.
@param [in] RangeLength Range length.
@param [in] ResourceSourceIndex Resource Source index.
Not supported. Must be 0.
@param [in] ResourceSource Resource Source.
Not supported. Must be NULL.
@param [in] IsDenseTranslation TranslationDensity parameter.
@param [in] IsTypeStatic TranslationType parameter.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data
node to the list of resource data elements
of this node.
@param [out] NewRdNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdDWordIo (
IN BOOLEAN IsResourceConsumer,
IN BOOLEAN IsMinFixed,
IN BOOLEAN IsMaxFixed,
IN BOOLEAN IsPosDecode,
IN UINT8 IsaRanges,
IN UINT32 AddressGranularity,
IN UINT32 AddressMinimum,
IN UINT32 AddressMaximum,
IN UINT32 AddressTranslation,
IN UINT32 RangeLength,
IN UINT8 ResourceSourceIndex,
IN CONST CHAR8 *ResourceSource,
IN BOOLEAN IsDenseTranslation,
IN BOOLEAN IsTypeStatic,
IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
);
/** Code generation for the "DWordMemory ()" ASL function.
The Resource Data effectively created is a DWord Address Space Resource
Data. Cf ACPI 6.4:
- s6.4.3.5.2 "DWord Address Space Descriptor".
- s19.6.35 "DWordMemory".
The created resource data node can be:
- appended to the list of resource data elements of the NameOpNode.
In such case NameOpNode must be defined by a the "Name ()" ASL statement
and initially contain a "ResourceTemplate ()".
- returned through the NewRdNode parameter.
See ACPI 6.4 spec, s19.6.35 for more.
@param [in] IsResourceConsumer ResourceUsage parameter.
@param [in] IsPosDecode Decode parameter
@param [in] IsMinFixed Minimum address is fixed.
@param [in] IsMaxFixed Maximum address is fixed.
@param [in] Cacheable Possible values are:
0-The memory is non-cacheable
1-The memory is cacheable
2-The memory is cacheable and supports
write combining
3-The memory is cacheable and prefetchable
@param [in] IsReadWrite ReadAndWrite parameter.
@param [in] AddressGranularity Address granularity.
@param [in] AddressMinimum Minimum address.
@param [in] AddressMaximum Maximum address.
@param [in] AddressTranslation Address translation.
@param [in] RangeLength Range length.
@param [in] ResourceSourceIndex Resource Source index.
Not supported. Must be 0.
@param [in] ResourceSource Resource Source.
Not supported. Must be NULL.
@param [in] MemoryRangeType Possible values are:
0-AddressRangeMemory
1-AddressRangeReserved
2-AddressRangeACPI
3-AddressRangeNVS
@param [in] IsTypeStatic TranslationType parameter.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data
node to the list of resource data elements
of this node.
@param [out] NewRdNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdDWordMemory (
IN BOOLEAN IsResourceConsumer,
IN BOOLEAN IsPosDecode,
IN BOOLEAN IsMinFixed,
IN BOOLEAN IsMaxFixed,
IN UINT8 Cacheable,
IN BOOLEAN IsReadWrite,
IN UINT32 AddressGranularity,
IN UINT32 AddressMinimum,
IN UINT32 AddressMaximum,
IN UINT32 AddressTranslation,
IN UINT32 RangeLength,
IN UINT8 ResourceSourceIndex,
IN CONST CHAR8 *ResourceSource,
IN UINT8 MemoryRangeType,
IN BOOLEAN IsTypeStatic,
IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
);
/** Code generation for the "Memory32Fixed ()" ASL macro.
The Resource Data effectively created is a 32-bit Memory Resource
Data. Cf ACPI 6.4:
- s19.6.83 "Memory Resource Descriptor Macro".
- s19.2.8 "Memory32FixedTerm".
See ACPI 6.4 spec, s19.2.8 for more.
@param [in] IsReadWrite ReadAndWrite parameter.
@param [in] Address AddressBase parameter.
@param [in] RangeLength Range length.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data
node to the list of resource data elements
of this node.
@param [out] NewMemNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdMemory32Fixed (
BOOLEAN IsReadWrite,
UINT32 Address,
UINT32 RangeLength,
AML_OBJECT_NODE_HANDLE NameOpNode,
AML_DATA_NODE_HANDLE *NewMemNode
);
/** Code generation for the "WordBusNumber ()" ASL function.
The Resource Data effectively created is a Word Address Space Resource
Data. Cf ACPI 6.4:
- s6.4.3.5.3 "Word Address Space Descriptor".
- s19.6.149 "WordBusNumber".
The created resource data node can be:
- appended to the list of resource data elements of the NameOpNode.
In such case NameOpNode must be defined by a the "Name ()" ASL statement
and initially contain a "ResourceTemplate ()".
- returned through the NewRdNode parameter.
See ACPI 6.4 spec, s19.6.149 for more.
@param [in] IsResourceConsumer ResourceUsage parameter.
@param [in] IsMinFixed Minimum address is fixed.
@param [in] IsMaxFixed Maximum address is fixed.
@param [in] IsPosDecode Decode parameter
@param [in] AddressGranularity Address granularity.
@param [in] AddressMinimum Minimum address.
@param [in] AddressMaximum Maximum address.
@param [in] AddressTranslation Address translation.
@param [in] RangeLength Range length.
@param [in] ResourceSourceIndex Resource Source index.
Not supported. Must be 0.
@param [in] ResourceSource Resource Source.
Not supported. Must be NULL.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data
node to the list of resource data elements
of this node.
@param [out] NewRdNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdWordBusNumber (
IN BOOLEAN IsResourceConsumer,
IN BOOLEAN IsMinFixed,
IN BOOLEAN IsMaxFixed,
IN BOOLEAN IsPosDecode,
IN UINT32 AddressGranularity,
IN UINT32 AddressMinimum,
IN UINT32 AddressMaximum,
IN UINT32 AddressTranslation,
IN UINT32 RangeLength,
IN UINT8 ResourceSourceIndex,
IN CONST CHAR8 *ResourceSource,
IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
);
/** Code generation for the "QWordMemory ()" ASL function.
The Resource Data effectively created is a QWord Address Space Resource
Data. Cf ACPI 6.4:
- s6.4.3.5.1 "QWord Address Space Descriptor".
- s19.6.110 "QWordMemory".
The created resource data node can be:
- appended to the list of resource data elements of the NameOpNode.
In such case NameOpNode must be defined by a the "Name ()" ASL statement
and initially contain a "ResourceTemplate ()".
- returned through the NewRdNode parameter.
See ACPI 6.4 spec, s19.6.110 for more.
@param [in] IsResourceConsumer ResourceUsage parameter.
@param [in] IsPosDecode Decode parameter.
@param [in] IsMinFixed Minimum address is fixed.
@param [in] IsMaxFixed Maximum address is fixed.
@param [in] Cacheable Possible values are:
0-The memory is non-cacheable
1-The memory is cacheable
2-The memory is cacheable and supports
write combining
3-The memory is cacheable and prefetchable
@param [in] IsReadWrite ReadAndWrite parameter.
@param [in] AddressGranularity Address granularity.
@param [in] AddressMinimum Minimum address.
@param [in] AddressMaximum Maximum address.
@param [in] AddressTranslation Address translation.
@param [in] RangeLength Range length.
@param [in] ResourceSourceIndex Resource Source index.
Not supported. Must be 0.
@param [in] ResourceSource Resource Source.
Not supported. Must be NULL.
@param [in] MemoryRangeType Possible values are:
0-AddressRangeMemory
1-AddressRangeReserved
2-AddressRangeACPI
3-AddressRangeNVS
@param [in] IsTypeStatic TranslationType parameter.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data
node to the list of resource data elements
of this node.
@param [out] NewRdNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdQWordMemory (
IN BOOLEAN IsResourceConsumer,
IN BOOLEAN IsPosDecode,
IN BOOLEAN IsMinFixed,
IN BOOLEAN IsMaxFixed,
IN UINT8 Cacheable,
IN BOOLEAN IsReadWrite,
IN UINT64 AddressGranularity,
IN UINT64 AddressMinimum,
IN UINT64 AddressMaximum,
IN UINT64 AddressTranslation,
IN UINT64 RangeLength,
IN UINT8 ResourceSourceIndex,
IN CONST CHAR8 *ResourceSource,
IN UINT8 MemoryRangeType,
IN BOOLEAN IsTypeStatic,
IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
);
/** Code generation for the "Interrupt ()" ASL function.
The Resource Data effectively created is an Extended Interrupt Resource
Data. Cf ACPI 6.4:
- s6.4.3.6 "Extended Interrupt Descriptor"
- s19.6.64 "Interrupt (Interrupt Resource Descriptor Macro)"
The created resource data node can be:
- appended to the list of resource data elements of the NameOpNode.
In such case NameOpNode must be defined by a the "Name ()" ASL statement
and initially contain a "ResourceTemplate ()".
- returned through the NewRdNode parameter.
@ingroup CodeGenApis
@param [in] ResourceConsumer The device consumes the specified interrupt
or produces it for use by a child device.
@param [in] EdgeTriggered The interrupt is edge triggered or
level triggered.
@param [in] ActiveLow The interrupt is active-high or active-low.
@param [in] Shared The interrupt can be shared with other
devices or not (Exclusive).
@param [in] IrqList Interrupt list. Must be non-NULL.
@param [in] IrqCount Interrupt count. Must be non-zero.
@param [in] NameOpNode NameOp object node defining a named object.
If provided, append the new resource data node
to the list of resource data elements of this
node.
@param [out] NewRdNode If provided and success,
contain the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdInterrupt (
IN BOOLEAN ResourceConsumer,
IN BOOLEAN EdgeTriggered,
IN BOOLEAN ActiveLow,
IN BOOLEAN Shared,
IN UINT32 *IrqList,
IN UINT8 IrqCount,
IN AML_OBJECT_NODE_HANDLE NameOpNode OPTIONAL,
OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
);
/** AML code generation for DefinitionBlock.
Create a Root Node handle.
It is the caller's responsibility to free the allocated memory
with the AmlDeleteTree function.
AmlCodeGenDefinitionBlock (TableSignature, OemId, TableID, OEMRevision) is
equivalent to the following ASL code:
DefinitionBlock (AMLFileName, TableSignature, ComplianceRevision,
OemId, TableID, OEMRevision) {}
with the ComplianceRevision set to 2 and the AMLFileName is ignored.
@ingroup CodeGenApis
@param[in] TableSignature 4-character ACPI signature.
Must be 'DSDT' or 'SSDT'.
@param[in] OemId 6-character string OEM identifier.
@param[in] OemTableId 8-character string OEM table identifier.
@param[in] OemRevision OEM revision number.
@param[out] DefinitionBlockTerm The ASL Term handle representing a
Definition Block.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenDefinitionBlock (
IN CONST CHAR8 *TableSignature,
IN CONST CHAR8 *OemId,
IN CONST CHAR8 *OemTableId,
IN UINT32 OemRevision,
OUT AML_ROOT_NODE_HANDLE *NewRootNode
);
/** AML code generation for a Name object node, containing a String.
AmlCodeGenNameString ("_HID", "HID0000", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(_HID, "HID0000")
@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] String NULL terminated String to associate to the
NameString.
@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
AmlCodeGenNameString (
IN CONST CHAR8 *NameString,
IN CHAR8 *String,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a Name object node, containing an Integer.
AmlCodeGenNameInteger ("_UID", 1, ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(_UID, One)
@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] Integer Integer to associate to the NameString.
@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
AmlCodeGenNameInteger (
IN CONST CHAR8 *NameString,
IN UINT64 Integer,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a Name object node, containing a Package.
AmlCodeGenNamePackage ("PKG0", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(PKG0, Package () {})
@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
AmlCodeGenNamePackage (
IN CONST CHAR8 *NameString,
IN AML_NODE_HANDLE ParentNode, OPTIONAL
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
);
/** Add a _PRT entry.
AmlCodeGenPrtEntry (0x0FFFF, 0, "LNKA", 0, PrtNameNode) is
equivalent of the following ASL code:
Package (4) {
0x0FFFF, // Address: Device address (([Device Id] << 16) | 0xFFFF).
0, // Pin: PCI pin number of the device (0-INTA, ...).
LNKA // Source: Name of the device that allocates the interrupt
// to which the above pin is connected.
0 // Source Index: Source is assumed to only describe one
// interrupt, so let it to index 0.
}
The package is added at the tail of the list of the input _PRT node
name:
Name (_PRT, Package () {
[Pre-existing _PRT entries],
[Newly created _PRT entry]
})
Cf. ACPI 6.4, s6.2.13 "_PRT (PCI Routing Table)"
@ingroup CodeGenApis
@param [in] Address Address. Cf ACPI 6.4 specification, Table 6.2:
"ADR Object Address Encodings":
High word-Device #, Low word-Function #. (for
example, device 3, function 2 is 0x00030002).
To refer to all the functions on a device #,
use a function number of FFFF).
@param [in] Pin PCI pin number of the device (0-INTA ... 3-INTD).
Must be between 0-3.
@param [in] LinkName Link Name, i.e. device in the AML NameSpace
describing the interrupt used.
The input string is copied.
@param [in] SourceIndex Source index or GSIV.
@param [in] PrtNameNode Prt Named node to add the object to ....
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddPrtEntry (
IN UINT32 Address,
IN UINT8 Pin,
IN CONST CHAR8 *LinkName,
IN UINT32 SourceIndex,
IN AML_OBJECT_NODE_HANDLE PrtNameNode
);
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Device(COM0) {}
@ingroup CodeGenApis
@param [in] NameString The new Device's 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
AmlCodeGenDevice (
IN CONST CHAR8 *NameString,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a Scope object node.
AmlCodeGenScope ("_SB", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Scope(_SB) {}
@ingroup CodeGenApis
@param [in] NameString The new Scope's 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
AmlCodeGenScope (
IN CONST CHAR8 *NameString,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a method returning a NameString.
AmlCodeGenMethodRetNameString (
"MET0", "_CRS", 1, TRUE, 3, ParentNode, NewObjectNode
);
is equivalent of the following ASL code:
Method(MET0, 1, Serialized, 3) {
Return (_CRS)
}
The ASL parameters "ReturnType" and "ParameterTypes" are not asked
in this function. They are optional parameters in ASL.
@ingroup CodeGenApis
@param [in] MethodNameString The new Method's name.
Must be a NULL-terminated ASL NameString
e.g.: "MET0", "_SB.MET0", etc.
The input string is copied.
@param [in] ReturnedNameString The name of the object returned by the
method. Optional parameter, can be:
- NULL (ignored).
- A NULL-terminated ASL NameString.
e.g.: "MET0", "_SB.MET0", etc.
The input string is copied.
@param [in] NumArgs Number of arguments.
Must be 0 <= NumArgs <= 6.
@param [in] IsSerialized TRUE is equivalent to Serialized.
FALSE is equivalent to NotSerialized.
Default is NotSerialized in ASL spec.
@param [in] SyncLevel Synchronization level for the method.
Must be 0 <= SyncLevel <= 15.
Default is 0 in ASL.
@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
AmlCodeGenMethodRetNameString (
IN CONST CHAR8 *MethodNameString,
IN CONST CHAR8 *ReturnedNameString OPTIONAL,
IN UINT8 NumArgs,
IN BOOLEAN IsSerialized,
IN UINT8 SyncLevel,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** AML code generation for a method returning an Integer.
AmlCodeGenMethodRetInteger (
"_CBA", 0, 1, TRUE, 3, ParentNode, NewObjectNode
);
is equivalent of the following ASL code:
Method(_CBA, 1, Serialized, 3) {
Return (0)
}
The ASL parameters "ReturnType" and "ParameterTypes" are not asked
in this function. They are optional parameters in ASL.
@param [in] MethodNameString The new Method's name.
Must be a NULL-terminated ASL NameString
e.g.: "MET0", "_SB.MET0", etc.
The input string is copied.
@param [in] ReturnedInteger The value of the integer returned by the
method.
@param [in] NumArgs Number of arguments.
Must be 0 <= NumArgs <= 6.
@param [in] IsSerialized TRUE is equivalent to Serialized.
FALSE is equivalent to NotSerialized.
Default is NotSerialized in ASL spec.
@param [in] SyncLevel Synchronization level for the method.
Must be 0 <= SyncLevel <= 15.
Default is 0 in ASL.
@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
AmlCodeGenMethodRetInteger (
IN CONST CHAR8 *MethodNameString,
IN UINT64 ReturnedInteger,
IN UINT8 NumArgs,
IN BOOLEAN IsSerialized,
IN UINT8 SyncLevel,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewObjectNode OPTIONAL
);
/** Create a _LPI name.
AmlCreateLpiNode ("_LPI", 0, 1, ParentNode, &LpiNode) is
equivalent of the following ASL code:
Name (_LPI, Package (
0, // Revision
1, // LevelId
0 // Count
))
This function doesn't define any LPI state. As shown above, the count
of _LPI state is set to 0.
The AmlAddLpiState () function must be used to add LPI states.
Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".
@ingroup CodeGenApis
@param [in] LpiNameString The new LPI 's object name.
Must be a NULL-terminated ASL NameString
e.g.: "_LPI", "DEV0.PLPI", etc.
The input string is copied.
@param [in] Revision Revision number of the _LPI states.
@param [in] LevelId A platform defined number that identifies the
level of hierarchy of the processor node to
which the LPI states apply.
@param [in] ParentNode If provided, set ParentNode as the parent
of the node created.
@param [out] NewLpiNode If success, contains the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCreateLpiNode (
IN CONST CHAR8 *LpiNameString,
IN UINT16 Revision,
IN UINT64 LevelId,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewLpiNode OPTIONAL
);
/** Add an _LPI state to a LPI node created using AmlCreateLpiNode ().
AmlAddLpiState () increments the Count of LPI states in the LPI node by one,
and adds the following package:
Package() {
MinResidency,
WorstCaseWakeLatency,
Flags,
ArchFlags,
ResCntFreq,
EnableParentState,
(GenericRegisterDescriptor != NULL) ? // Entry method. If a
ResourceTemplate(GenericRegisterDescriptor) : // Register is given,
Integer, // use it. Use the
// Integer otherwise.
ResourceTemplate() { // NULL Residency Counter
Register (SystemMemory, 0, 0, 0, 0)
},
ResourceTemplate() { // NULL Usage Counter
Register (SystemMemory, 0, 0, 0, 0)
},
"" // NULL State Name
},
Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".
@ingroup CodeGenApis
@param [in] MinResidency Minimum Residency.
@param [in] WorstCaseWakeLatency Worst case wake-up latency.
@param [in] Flags Flags.
@param [in] ArchFlags Architectural flags.
@param [in] ResCntFreq Residency Counter Frequency.
@param [in] EnableParentState Enabled Parent State.
@param [in] GenericRegisterDescriptor Entry Method.
If not NULL, use this Register to
describe the entry method address.
@param [in] Integer Entry Method.
If GenericRegisterDescriptor is NULL,
take this value.
@param [in] ResidencyCounterRegister If not NULL, use it to populate the
residency counter register.
@param [in] UsageCounterRegister If not NULL, use it to populate the
usage counter register.
@param [in] StateName If not NULL, use it to populate the
state name.
@param [in] LpiNode Lpi node created with the function
AmlCreateLpiNode to which the new LPI
state is appended.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddLpiState (
IN UINT32 MinResidency,
IN UINT32 WorstCaseWakeLatency,
IN UINT32 Flags,
IN UINT32 ArchFlags,
IN UINT32 ResCntFreq,
IN UINT32 EnableParentState,
IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE *GenericRegisterDescriptor OPTIONAL,
IN UINT64 Integer OPTIONAL,
IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE *ResidencyCounterRegister OPTIONAL,
IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE *UsageCounterRegister OPTIONAL,
IN CHAR8 *StateName OPTIONAL,
IN AML_OBJECT_NODE_HANDLE LpiNode
);
/** AML code generation for a _DSD device data object.
AmlAddDeviceDataDescriptorPackage (Uuid, DsdNode, PackageNode) is
equivalent of the following ASL code:
ToUUID(Uuid),
Package () {}
Cf ACPI 6.4 specification, s6.2.5 "_DSD (Device Specific Data)".
_DSD (Device Specific Data) Implementation Guide
https://github.com/UEFI/DSD-Guide
Per s3. "'Well-Known _DSD UUIDs and Data Structure Formats'"
If creating a Device Properties data then UUID daffd814-6eba-4d8c-8a91-bc9bbf4aa301 should be used.
@param [in] Uuid The Uuid of the descriptor to be created
@param [in] DsdNode Node of the DSD Package.
@param [out] PackageNode If success, contains the created package node.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddDeviceDataDescriptorPackage (
IN CONST EFI_GUID *Uuid,
IN AML_OBJECT_NODE_HANDLE DsdNode,
OUT AML_OBJECT_NODE_HANDLE *PackageNode
);
/** AML code generation to add a package with a name and value,
to a parent package.
This is useful to build the _DSD package but can be used in other cases.
AmlAddNameIntegerPackage ("Name", Value, PackageNode) is
equivalent of the following ASL code:
Package (2) {"Name", Value}
Cf ACPI 6.4 specification, s6.2.5 "_DSD (Device Specific Data)".
@param [in] Name String to place in first entry of package
@param [in] Value Integer to place in second entry of package
@param [in] PackageNode Package to add new sub package to.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddNameIntegerPackage (
IN CHAR8 *Name,
IN UINT64 Value,
IN AML_OBJECT_NODE_HANDLE PackageNode
);
/** Create a _CPC node.
Creates and optionally adds the following node
Name(_CPC, Package()
{
NumEntries, // Integer
Revision, // Integer
HighestPerformance, // Integer or Buffer (Resource Descriptor)
NominalPerformance, // Integer or Buffer (Resource Descriptor)
LowestNonlinearPerformance, // Integer or Buffer (Resource Descriptor)
LowestPerformance, // Integer or Buffer (Resource Descriptor)
GuaranteedPerformanceRegister, // Buffer (Resource Descriptor)
DesiredPerformanceRegister , // Buffer (Resource Descriptor)
MinimumPerformanceRegister , // Buffer (Resource Descriptor)
MaximumPerformanceRegister , // Buffer (Resource Descriptor)
PerformanceReductionToleranceRegister, // Buffer (Resource Descriptor)
TimeWindowRegister, // Buffer (Resource Descriptor)
CounterWraparoundTime, // Integer or Buffer (Resource Descriptor)
ReferencePerformanceCounterRegister, // Buffer (Resource Descriptor)
DeliveredPerformanceCounterRegister, // Buffer (Resource Descriptor)
PerformanceLimitedRegister, // Buffer (Resource Descriptor)
CPPCEnableRegister // Buffer (Resource Descriptor)
AutonomousSelectionEnable, // Integer or Buffer (Resource Descriptor)
AutonomousActivityWindowRegister, // Buffer (Resource Descriptor)
EnergyPerformancePreferenceRegister, // Buffer (Resource Descriptor)
ReferencePerformance // Integer or Buffer (Resource Descriptor)
LowestFrequency, // Integer or Buffer (Resource Descriptor)
NominalFrequency // Integer or Buffer (Resource Descriptor)
})
If resource buffer is NULL then integer will be used.
Cf. ACPI 6.4, s8.4.7.1 _CPC (Continuous Performance Control)
@ingroup CodeGenApis
@param [in] CpcInfo CpcInfo object
@param [in] ParentNode If provided, set ParentNode as the parent
of the node created.
@param [out] NewCpcNode If success and provided, contains the created node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCreateCpcNode (
IN AML_CPC_INFO *CpcInfo,
IN AML_NODE_HANDLE ParentNode OPTIONAL,
OUT AML_OBJECT_NODE_HANDLE *NewCpcNode OPTIONAL
);
// DEPRECATED APIS
#ifndef DISABLE_NEW_DEPRECATED_INTERFACES
/** DEPRECATED API
Get the first Resource Data element contained in a "_CRS" object.
In the following ASL code, the function will return the Resource Data
node corresponding to the "QWordMemory ()" ASL macro.
Name (_CRS, ResourceTemplate() {
QWordMemory (...) {...},
Interrupt (...) {...}
}
)
Note:
- The "_CRS" object must be declared using ASL "Name (Declare Named Object)".
- "_CRS" declared using ASL "Method (Declare Control Method)" is not
supported.
@ingroup UserApis
@param [in] NameOpCrsNode NameOp object node defining a "_CRS" object.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
NameOp object nodes are defined in ASL
using the "Name ()" function.
@param [out] OutRdNode Pointer to the first Resource Data element of
the "_CRS" object. A Resource Data element
is stored in a data node.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpCrsGetFirstRdNode (
IN AML_OBJECT_NODE_HANDLE NameOpCrsNode,
OUT AML_DATA_NODE_HANDLE *OutRdNode
);
/** DEPRECATED API
Get the Resource Data element following the CurrRdNode Resource Data.
In the following ASL code, if CurrRdNode corresponds to the first
"QWordMemory ()" ASL macro, the function will return the Resource Data
node corresponding to the "Interrupt ()" ASL macro.
Name (_CRS, ResourceTemplate() {
QwordMemory (...) {...},
Interrupt (...) {...}
}
)
The CurrRdNode Resource Data node must be defined in an object named "_CRS"
and defined by a "Name ()" ASL function.
@ingroup UserApis
@param [in] CurrRdNode Pointer to the current Resource Data element of
the "_CRS" variable.
@param [out] OutRdNode Pointer to the Resource Data element following
the CurrRdNode.
Contain a NULL pointer if CurrRdNode is the
last Resource Data element in the list.
The "End Tag" is not considered as a resource
data element and is not returned.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpCrsGetNextRdNode (
IN AML_DATA_NODE_HANDLE CurrRdNode,
OUT AML_DATA_NODE_HANDLE *OutRdNode
);
/** DEPRECATED API
Add an Interrupt Resource Data node.
This function creates a Resource Data element corresponding to the
"Interrupt ()" ASL function, stores it in an AML Data Node.
It then adds it after the input CurrRdNode in the list of resource data
element.
The Resource Data effectively created is an Extended Interrupt Resource
Data. See ACPI 6.3 specification, s6.4.3.6 "Extended Interrupt Descriptor"
for more information about Extended Interrupt Resource Data.
The Extended Interrupt contains one single interrupt.
This function allocates memory to create a data node. It is the caller's
responsibility to either:
- attach this node to an AML tree;
- delete this node.
Note: The _CRS node must be defined using the ASL Name () function.
e.g. Name (_CRS, ResourceTemplate () {
...
}
@ingroup CodeGenApis
@param [in] NameOpCrsNode NameOp object node defining a "_CRS" object.
Must have an OpCode=AML_NAME_OP, SubOpCode=0.
NameOp object nodes are defined in ASL
using the "Name ()" function.
@param [in] ResourceConsumer The device consumes the specified interrupt
or produces it for use by a child device.
@param [in] EdgeTriggered The interrupt is edge triggered or
level triggered.
@param [in] ActiveLow The interrupt is active-high or active-low.
@param [in] Shared The interrupt can be shared with other
devices or not (Exclusive).
@param [in] IrqList Interrupt list. Must be non-NULL.
@param [in] IrqCount Interrupt count. Must be non-zero.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenCrsAddRdInterrupt (
IN AML_OBJECT_NODE_HANDLE NameOpCrsNode,
IN BOOLEAN ResourceConsumer,
IN BOOLEAN EdgeTriggered,
IN BOOLEAN ActiveLow,
IN BOOLEAN Shared,
IN UINT32 *IrqList,
IN UINT8 IrqCount
);
#endif // DISABLE_NEW_DEPRECATED_INTERFACES
#endif // AML_LIB_H_
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