Documentation
¶
Index ¶
- Constants
- type Object
- type ObjectTree
- func (tree *ObjectTree) ArgAt(obj *Object, index uint32) *Object
- func (tree *ObjectTree) ClosestNamedAncestor(obj *Object) uint32
- func (tree *ObjectTree) CreateDefaultScopes(tableHandle uint8)
- func (tree *ObjectTree) Find(scopeIndex uint32, expr []byte) uint32
- func (tree *ObjectTree) NumArgs(obj *Object) uint32
- func (tree *ObjectTree) ObjectAt(index uint32) *Object
- func (tree *ObjectTree) PrettyPrint(w io.Writer)
- type Parser
Constants ¶
const ( // InvalidIndex is a sentinel value used by ObjectTree to indicate that // a returned object index is not valid. InvalidIndex uint32 = (1 << 32) - 1 )
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Object ¶
type Object struct {
// contains filtered or unexported fields
}
Object describes an entity encoded in the AML bytestream.
type ObjectTree ¶
type ObjectTree struct {
// contains filtered or unexported fields
}
ObjectTree is a structure that contains a tree of AML entities where each entity is allocated from a contiguous Object pool. Index #0 of the pool contains the root scope ('\') of the AML tree.
func NewObjectTree ¶
func NewObjectTree() *ObjectTree
NewObjectTree returns a new ObjectTree instance.
func (*ObjectTree) ArgAt ¶
func (tree *ObjectTree) ArgAt(obj *Object, index uint32) *Object
ArgAt returns a pointer to obj's arg located at index.
func (*ObjectTree) ClosestNamedAncestor ¶
func (tree *ObjectTree) ClosestNamedAncestor(obj *Object) uint32
ClosestNamedAncestor returns the index of the first named object that is an ancestor of obj. If any of obj's parents are unresolved scope directives then the call will return InvalidIndex.
func (*ObjectTree) CreateDefaultScopes ¶
func (tree *ObjectTree) CreateDefaultScopes(tableHandle uint8)
CreateDefaultScopes populates the Object pool with the default scopes specified by the ACPI standard:
+-[\] (Root scope) +- [_GPE] (General events in GPE register block) +- [_PR_] (ACPI 1.0 processor namespace) +- [_SB_] (System bus with all device objects) +- [_SI_] (System indicators) +- [_TZ_] (ACPI 1.0 thermal zone namespace)
func (*ObjectTree) Find ¶
func (tree *ObjectTree) Find(scopeIndex uint32, expr []byte) uint32
Find attempts to resolve the given expression into an Object using the rules specified in page 252 of the ACPI 6.2 spec:
There are two types of namespace paths: an absolute namespace path (that is, one that starts with a ‘\’ prefix), and a relative namespace path (that is, one that is relative to the current namespace). The namespace search rules discussed above, only apply to single NameSeg paths, which is a relative namespace path. For those relative name paths that contain multiple NameSegs or Parent Prefixes, ‘^’, the search rules do not apply. If the search rules do not apply to a relative namespace path, the namespace object is looked up relative to the current namespace
func (*ObjectTree) NumArgs ¶
func (tree *ObjectTree) NumArgs(obj *Object) uint32
NumArgs returns the number of arguments contained in obj.
func (*ObjectTree) ObjectAt ¶
func (tree *ObjectTree) ObjectAt(index uint32) *Object
ObjectAt returns a pointer to the Object at the specified index or nil if no object with this index exists inside the object tree.
func (*ObjectTree) PrettyPrint ¶
func (tree *ObjectTree) PrettyPrint(w io.Writer)
PrettyPrint outputs a pretty-printed version of the AML tree to w.
type Parser ¶
type Parser struct {
// contains filtered or unexported fields
}
Parser implements a parser for ACPI Machine Language (AML) bytecode.
Source Files