Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
can be found in “QWord Address Space Descriptor ” (page 354). The macro is designed to be used
inside of a ResourceTemplate (page 882).
19.6.106 RawDataBuffer
Syntax
RawDataBuffer (RDBufferSize) {ByteList} => RawDataBuffer
Arguments
Declares a RawDataBuffer of size RDBufferSize and optional initial value of ByteList.
Description
The optional RDBufferSize parameter specifies the size of the buffer and must be a word constant.
The initial value is specified in Initializer ByteList. If RDBufferSize is not specified, it defaults to the
size of initializer. If the count is too small to hold the value specified by initializer, the initializer size
is used.
Note that a RawDataBuffer is not encoded as a Buffer (Opcode, Package length bytes, etc), but
rather contains only the raw bytes specified.
19.6.107 RefOf (Create Object Reference)
Syntax
RefOf (Object) => ObjectReference
Arguments
Object can be any object type (for example, a package, a device object, and so on).
Description
Returns an object reference to Object. If the Object does not exist, the result of a RefOf operation is
fatal. Use the CondRefOf term in cases where the Object might not exist.
The primary purpose of RefOf() is to allow an object to be passed to a method as an argument to the
method without the object being evaluated at the time the method was loaded.
19.6.108 Register (Generic Register Resource Descriptor Macro)
Syntax
Register (AddressSpaceKeyword, RegisterBitWidth, RegisterBitOffset, RegisterAddress,
AccessSize, DescriptorName)
Arguments
AddressSpaceKeyword specifies the address space where the register exists. The register can exist in
I/O space (SystemIO), memory (SystemMemory), PCI configuration space (PCI_Config),
embedded controller space (EmbeddedControl), SMBus (SMBus), Platform Communications
Channel (PCC), or fixed-feature hardware (FFixedHW). The 8-bit field DescriptorName. _ASI is
880 April, 2015 Version 6.0