Advanced Configuration and Power Interface Specification

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Advanced Configuration and Power Interface Specification Return Value: None 0 – PIC mode 1 – APIC mode 2 – SAPIC mode Other values –Reserved 276 April, 2015 Version 6.0
Device Configuration 6 Device Configuration This section specifies the objects OSPM uses to configure devices. There are three types of configuration objects: Device identification objects associate platform devices with Plug and Play IDs. • Device configuration objects declare and configure hardware resources and characteristics for devices enumerated via ACPI. • Device insertion and removal objects provide mechanisms for handling dynamic insertion and removal of devices. This section also defines the ACPI device–resource descriptor formats. Device–resource descriptors are used as parameters by some of the device configuration objects. 6.1 Device Identification Objects Device identification objects associate each platform device with a Plug and Play device ID for each device. All the device identification objects are listed in the table below: Table 6-167 Device Identification Objects Object _ADR _CCA _CID _CLS _DDN _HID _HRV _MLS _PLD _PRD _SUB _SUN _STR _UID Description Object that evaluates to a device’s address on its parent bus. Cache Coherency Attribute -- specifies whether a device and its descendants support hardware managed cache coherency. Object that evaluates to a device’s Plug and Play-compatible ID list. Object that evaluates to a package of coded device-class information. Object that associates a logical software name (for example, COM1) with a device. Object that evaluates to a device’s Plug and Play hardware ID. Object that evaluates to an integer hardware revision number. Object that provides a human readable description of a device in multiple languages. Object that provides physical location description information. Object that evaluates to a package of device property subpackages. Object that evaluates to a device's Plug and Play subsystem ID. Object that evaluates to the slot-unique ID number for a slot. Object that contains a Unicode identifier for a device. Object that specifies a device’s unique persistent ID, or a control method that generates it. For any device that is on a non-enumerable type of bus (for example, an ISA bus), OSPM enumerates the devices' identifier(s) and the ACPI system firmware must supply an _HID object (plus one or more optional objects such as _CID, _CLS, _HRV, _SUB) for each device to enable OSPM to do that. For devices on an enumerable type of bus, such as a PCI bus, the ACPI system Version 6.0 277
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Advanced Configuration and Power In
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Contents 1 2 Introduction........
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5 ACPI Software Programming Model
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7 6.3.6 _RMV (Remove) ............
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9.2.5 _ALR (Ambient Light Response)
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11.2.1 Evaluating Thermal Device Li
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14.1.3 Generic Communications Subsp
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19.6.10 Buffer (Declare Buffer Obje
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19.6.102 Processor (Declare Process
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A.4.1 Power State Definitions......
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Tables Table 1-1 Hardware Type vs.
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Table 5-91 Power state Values .....
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Table 6-184 Device Insertion, Remov
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Table 10-275 Control Method Battery
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Table 19-367 Field Unit list entire
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Figures Figure 1-1 OSPM/ACPI Global
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Introduction 1 Introduction The Adv
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Introduction wake and answer the te
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Introduction Figure 1-1 OSPM/ACPI G
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Introduction specified below are ge
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Introduction ACPI System Descriptio
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Introduction • Support the ACPI E
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Introduction 1.9.2 Programming Mode
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Introduction 1.10 Related Documents
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Definition of Terms 2 Definition of
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Definition of Terms I/O SAPIC An In
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ACPI Overview 3 ACPI Overview Platf
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ACPI Hardware Specification 4 ACPI
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Device Configuration Field Byte Len
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Device Configuration Arguments: Non
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Device Configuration Table 6-187 Op
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Device Configuration User interacts
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Device Configuration Method(_EJ0, 1
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Device Configuration Offset Field N
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Device Configuration Table 6-197 I/
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Power and Performance Management 7
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Power and Performance Management
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Power and Performance Management 9.
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Processor Configuration and Control
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Thermal Management 11 Thermal Manag
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Thermal Management When a thermal z
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Thermal Management 11.1.5 Passive C
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Thermal Management 11.2 Cooling Pre
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Thermal Management Alternatively, d
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Thermal Management 11.3.1.2 _FPS (F
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Thermal Management Package (){ Revi
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Thermal Management Return Value: No
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Thermal Management occurs—relievi
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Thermal Management Scope(\_SB) { De
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Thermal Management } // fan cooling
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Thermal Management // For brevity,
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Thermal Management External(\_SB.CP
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System Address Map Interfaces 15 Sy
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Waking and Sleeping 16 Waking and S
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Waking and Sleeping 16.1 Sleeping S
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Waking and Sleeping 3. Removing pow
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Platforms Non-Uniform Memory Access
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Appendix A Device Class Specificati
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• PCI Bus Power Management Capabi
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A.4.1 Power State Definitions State
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A.5.1 Power State Definitions State
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power transitions and power managem
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A video controller conforming to th
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State Status Definition D2 N/A This
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The most common modem type is an IS
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State Status Definition D1 Optional
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A.10.1 Power State Definitions Stat
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A floppy disk and IDE channel devic
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Appendix B Video Extensions B.1 ACP
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GPE // ACPI General-purpose HW even
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B.3.2 _DOD (Enumerate All Devices A
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Pipe / Head Ports Display Types Dis
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the next boot, a 1 indicates a PCI
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Value 0x84 Description Previous Dis
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Bits Definition 31 0 - Don’t do a
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internal data structure of the OS t
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Symbols _EJx 334 ??????????????????
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Power Resource statements 391 prima
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centenary value, RTC alarm 83 Centr
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power resource objects 398 D2 Devic
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Eject Device List (_EDL) object 332
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features 68 functional implementati
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I/O resource flag 366 I/O SAPIC def
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logic fixed power button 77 lid swi
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objects _ BMC (Battery Maintenance
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transitioning working to soft-off s
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power resources battery management
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definition 22 table fields 115 RTC_
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protocols 650, 662, 669 Read/Write
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top of memory 704 ToString (Convert
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Advanced Configuration and Power Interface Specification

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