Advanced Configuration and Power Interface Specification

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Advanced Configuration and Power Interface Specification The _OSI method has one argument and one return value. The argument is an OS vendor defined string representing a set of OS interfaces and behaviors or an ACPI defined string representing an operating system and an ACPI feature group of the form, “OSVendorString-FeatureGroupString”. Arguments: (1) Arg0 – A String containing the OS interface / behavior compatibility string or the Feature Group string, as defined in Table 5-165, or the “OS Vendor String Prefix – OS Vendor Specific String”. OS Vendor String Prefixes are defined inTable 5-164 Return Value: An Integer containing a Boolean that indicates whether the requested feature is supported: 0x0 – 0xFFFFFFFF – The interface, behavior, or feature is not supported The interface, behavior, or feature is supported OSPM may indicate support for multiple OS interface / behavior strings if the operating system supports the behaviors. For example, a newer version of an operating system may indicate support for strings from all or some of the prior versions of that operating system. _OSI provides the platform with the ability to support new operating system versions and their associated features when they become available. OSPM can choose to expose new functionality based on the _OSI argument string. That is, OSPM can use the strings passed into _OSI to ensure compatibility between older platforms and newer operating systems by maintaining known compatible behavior for a platform. As such, it is recommended that _OSI be evaluated by the \_SB.INI control method so that platform compatible behavior or features are available early in operating system initialization. Since feature group functionality may be dependent on OSPM implementation, it may be required that OS vendor-defined strings be checked before feature group strings. Platform developers should consult OS vendor specific information for OS vendor defined strings representing a set of OS interfaces and behaviors. ACPI defined strings representing an operating system and an ACPI feature group are listed in the following tables. Table 5-164 Operating System Vendor Strings Operating System Vendor String Prefix “FreeBSD” “HP-UX” Description Free BSD HP Unix Operating Environment “Linux” “OpenVMS” “Windows” GNU/Linux Operating system HP OpenVMS Operating Environment Microsoft Windows Table 5-165 Feature Group Strings Feature Group String “Module Device” Description OSPM supports the declaration of module device (ACPI0004) in the namespace and will enumerate objects under the module device scope. 270 April, 2015 Version 6.0
ACPI Software Programming Model Feature Group String “Processor Device” OSPM supports the declaration of processors in the namespace using the ACPI0007 processor device HID. “3.0 Thermal Model” OSPM supports the extensions to the ACPI thermal model in Revision 3.0. “Extended Address Space OSPM supports the Extended Address Space Descriptor Descriptor” “3.0 _SCP Extensions” OSPM evaluates _SCP with the additional acoustic limit and power limit arguments defined in ACPI 3.0. “Processor Aggregator Device” Description OSPM supports the declaration of the processor aggregator device in the namespace using the ACPI000C processor aggregator device HID. Version 6.0 271
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Advanced Configuration and Power In
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Revision History Revision Change De
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Revision Change Description Affecte
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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 of power manage
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Definition of Terms I/O SAPIC An In
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Definition of Terms loaded. This al
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Definition of Terms varies on the w
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Definition of Terms in shallower po
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Definition of Terms state to allow
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ACPI Overview 3 ACPI Overview Platf
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ACPI Overview component to avoid da
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ACPI Overview Aspects of mobile PC
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ACPI Overview level, platform-speci
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ACPI Overview through their own bus
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ACPI Overview the SCI status bit ma
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ACPI Overview wait for the call. To
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ACPI Overview Each device enumerate
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ACPI Overview the battery is able t
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ACPI Overview Table 3-4 Level Warni
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ACPI Overview necessary. Figure 3-8
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ACPI Overview 3.11.1 Hardware-reduc
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ACPI Overview Low Power S0 Idle Cap
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ACPI Hardware Specification 4 ACPI
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ACPI Hardware Specification would b
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ACPI Hardware Specification OSPM re
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ACPI Hardware Specification SLP_ENx
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ACPI Hardware Specification Device
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ACPI Hardware Specification Generic
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ACPI Hardware Specification Feature
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ACPI Hardware Specification Registe
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ACPI Hardware Specification Table 4
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ACPI Hardware Specification purpose
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ACPI Hardware Specification 4.8.2.2
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ACPI Hardware Specification Month A
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ACPI Hardware Specification Bit Nam
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ACPI Hardware Specification Althoug
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ACPI Hardware Specification the SLE
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ACPI Software Programming Model 5 A
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ACPI Software Programming Model The
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ACPI Software Programming Model •
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ACPI Software Programming Model ACP
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ACPI Software Programming Model OEM
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ACPI Software Programming Model Sig
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ACPI Software Programming Model 5.2
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ACPI Software Programming Model FAC
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ACPI Software Programming Model Tab
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ACPI Software Programming Model Ena
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ACPI Software Programming Model RAS
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ACPI Software Programming Model (1)
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Device Configuration Device(PCI0) /
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Device Configuration Field Type Des
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Device Configuration This optional
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Device Configuration Field Byte Len
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Device Configuration If a device in
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Device Configuration are present, w
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Device Configuration Arguments: Non
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Device Configuration Return Value:
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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 6.4.2 Small Re
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Device Configuration Offset Field N
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Device Configuration Table 6-197 I/
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Device Configuration 6.4.2.9 End Ta
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Device Configuration Offset Byte 11
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Device Configuration To specify mul
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Device Configuration 6.5 Other Obje
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Device Configuration Note: If the m
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Device Configuration Note: The OS o
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Device Configuration whether the Gl
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Power and Performance Management 7
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Power and Performance Management No
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Power and Performance Management Re
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Power and Performance Management Ob
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Power and Performance Management Ar
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Power and Performance Management If
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Power and Performance Management ca
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Power and Performance Management
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Power and Performance Management im
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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 controller firmw
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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 11.4.2 _ALx (Act
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Thermal Management Element Object T
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Thermal Management Return Value: No
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Thermal Management Other Temperatur
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Thermal Management // // NOTE3: Thi
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Thermal Management 11.4.16 _TFP (Th
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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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Thermal Management Method(_TPT, 1)
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ACPI Embedded Controller Interface
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Platform Communications Channel (PC
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System Address Map Interfaces 15 Sy
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System Address Map Interfaces EAX F
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System Address Map Interfaces 15.3
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System Address Map Interfaces Base
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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 synchronized wi
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Waking and Sleeping 3. Removing pow
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Waking and Sleeping The _TTS contro
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Waking and Sleeping on what the har
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Waking and Sleeping CLI instruction
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Waking and Sleeping For this exampl
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Waking and Sleeping If an NVS image
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Platforms Non-Uniform Memory Access
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Platforms Non-Uniform Memory Access
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ACPI Platform Error Interfaces (APE
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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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A.6.1.2 Internal Flat Panel Devices
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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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B.5.5 _DDC (Return the EDID for thi
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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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