/*
* Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
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*
- * This file contains Original Code and/or Modifications of Original Code
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- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the
- * License may not be used to create, or enable the creation or
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- * system, or to circumvent, violate, or enable the circumvention or
- * violation of, any terms of an Apple operating system software license
- * agreement.
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- * Please obtain a copy of the License at
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- * file.
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- * The Original Code and all software distributed under the License are
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- * Please see the License for the specific language governing rights and
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
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*/
#include <IOKit/pwr_mgt/IOPM.h>
+/*! @header IOPMpowerState.h
+ @abstract Defines the struct IOPMPowerState that power managed drivers should use to describe their power states.
+*/
+
+/*! @struct IOPMPowerState
+ @abstract Describes a device's power state.
+ @discussion To take part in system power management, drivers should define an array of 2 or more power states and pass it to kernel power management through IOService::registerPowerDriver.
+ @field version Defines version number of this struct. Just use the value "1" when defining an IOPMPowerState.
+ @field capabilityFlags Describes the capability of the device in this state.
+ @field outputPowerCharacter Describes the power provided in this state.
+ @field inputPowerRequirement Describes the input power required in this state.
+ @field staticPower Describes average consumption in milliwatts. Unused; drivers may specify 0.
+ @field stateOrder Valid in version kIOPMPowerStateVersion2 or greater of this structure. Defines ordering of power states independently of the power state ordinal.
+ @field powerToAttain Describes dditional power to attain this state from next lower state (in milliWatts). Unused; drivers may specify 0.
+ @field timeToAttain Describes time required to enter this state from next lower state (in microseconds). Unused; drivers may specify 0.
+ @field settleUpTime Describes settle time required after entering this state from next lower state (microseconds). Unused; drivers may specify 0.
+ @field timeToLower Describes time required to enter next lower state from this one (microseconds). Unused; drivers may specify 0.
+ @field settleDownTime Settle time required after entering next lower state from this state (microseconds). Unused; drivers may specify 0.
+ @field powerDomainBudget Describes power in milliWatts a domain in this state can deliver to its children. Unused; drivers may specify 0.
+}
+*/
+
struct IOPMPowerState
{
- unsigned long version; // version number of this struct
-IOPMPowerFlags capabilityFlags; // bits that describe (to interested drivers) the capability of the device in this state
-IOPMPowerFlags outputPowerCharacter; // description (to power domain children) of the power provided in this state
-IOPMPowerFlags inputPowerRequirement; // description (to power domain parent) of input power required in this state
-unsigned long staticPower; // average consumption in milliwatts
-unsigned long unbudgetedPower; // additional consumption from separate power supply (mw)
-unsigned long powerToAttain; // additional power to attain this state from next lower state (in mw)
-unsigned long timeToAttain; // time required to enter this state from next lower state (in microseconds)
-unsigned long settleUpTime; // settle time required after entering this state from next lower state (microseconds)
-unsigned long timeToLower; // time required to enter next lower state from this one (in microseconds)
-unsigned long settleDownTime; // settle time required after entering next lower state from this state (microseconds)
-unsigned long powerDomainBudget; // power in mw a domain in this state can deliver to its children
+ unsigned long version;
+ IOPMPowerFlags capabilityFlags;
+ IOPMPowerFlags outputPowerCharacter;
+ IOPMPowerFlags inputPowerRequirement;
+ unsigned long staticPower;
+ unsigned long stateOrder;
+ unsigned long powerToAttain;
+ unsigned long timeToAttain;
+ unsigned long settleUpTime;
+ unsigned long timeToLower;
+ unsigned long settleDownTime;
+ unsigned long powerDomainBudget;
};
typedef struct IOPMPowerState IOPMPowerState;
enum {
- kIOPMPowerStateVersion1 = 1
+ kIOPMPowerStateVersion1 = 1,
+ kIOPMPowerStateVersion2 = 2
};
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