iokit/Kernel/IOPowerConnection.cpp

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  25  * Please see the License for the specific language governing rights and
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  29  */
  30
  31 #include <IOKit/pwr_mgt/IOPowerConnection.h>
  32
  33 #define super IOService
  34 OSDefineMetaClassAndStructors(IOPowerConnection,IOService)
  35
  36
  37 // **********************************************************************************
  38 // setDesiredDomainState
  39 //
  40 // Parent of the connection calls here to save the childs desire
  41 // **********************************************************************************
  42 void IOPowerConnection::setDesiredDomainState (unsigned long stateNumber )
  43 {
  44     desiredDomainState = stateNumber;
  45 }
  46
  47
  48 // **********************************************************************************
  49 // getDesiredDomainState
  50 //
  51 // **********************************************************************************
  52 unsigned long IOPowerConnection::getDesiredDomainState ( void )
  53 {
  54     return desiredDomainState;
  55 }
  56
  57
  58 // **********************************************************************************
  59 // setChildHasRequestedPower
  60 //
  61 // Parent of the connection calls here when the child requests power
  62 // **********************************************************************************
  63 void IOPowerConnection::setChildHasRequestedPower ( void )
  64 {
  65     requestFlag = true;
  66 }
  67
  68 // **********************************************************************************
  69 // childHasRequestedPower
  70 //
  71 // Parent of the connection calls here when the child requests power
  72 // **********************************************************************************
  73 bool IOPowerConnection::childHasRequestedPower ( void )
  74 {
  75     return requestFlag;
  76 }
  77
  78
  79 // **********************************************************************************
  80 // setPreventIdleSleepFlag
  81 //
  82 // **********************************************************************************
  83 void IOPowerConnection::setPreventIdleSleepFlag ( unsigned long flag )
  84 {
  85     preventIdleSleepFlag = (flag != 0);
  86 }
  87
  88
  89 // **********************************************************************************
  90 // getPreventIdleSleepFlag
  91 //
  92 // **********************************************************************************
  93 bool IOPowerConnection::getPreventIdleSleepFlag ( void )
  94 {
  95     return preventIdleSleepFlag;
  96 }
  97
  98
  99 // **********************************************************************************
 100 // setPreventSystemSleepFlag
 101 //
 102 // **********************************************************************************
 103 void IOPowerConnection::setPreventSystemSleepFlag ( unsigned long flag )
 104 {
 105     preventSystemSleepFlag = (flag != 0);
 106 }
 107
 108
 109 // **********************************************************************************
 110 // getPreventSystemSleepFlag
 111 //
 112 // **********************************************************************************
 113 bool IOPowerConnection::getPreventSystemSleepFlag ( void )
 114 {
 115     return preventSystemSleepFlag;
 116 }
 117
 118
 119 // **********************************************************************************
 120 // setParentKnowsState
 121 //
 122 // Child of the connection calls here to set its reminder that the parent does
 123 // or does not yet know the state if its domain.
 124 // **********************************************************************************
 125 void IOPowerConnection::setParentKnowsState (bool flag )
 126 {
 127     stateKnown = flag;
 128 }
 129
 130
 131 // **********************************************************************************
 132 // setParentCurrentPowerFlags
 133 //
 134 // Child of the connection calls here to save what the parent says
 135 // is the state if its domain.
 136 // **********************************************************************************
 137 void IOPowerConnection::setParentCurrentPowerFlags (IOPMPowerFlags flags )
 138 {
 139     currentPowerFlags = flags;
 140 }
 141
 142
 143 // **********************************************************************************
 144 // parentKnowsState
 145 //
 146 // **********************************************************************************
 147 bool IOPowerConnection::parentKnowsState (void )
 148 {
 149     return stateKnown;
 150 }
 151
 152
 153 // **********************************************************************************
 154 // parentCurrentPowerFlags
 155 //
 156 // **********************************************************************************
 157 IOPMPowerFlags IOPowerConnection::parentCurrentPowerFlags (void )
 158 {
 159     return currentPowerFlags;
 160 }
 161
 162
 163 // **********************************************************************************
 164 // setAwaitingAck
 165 //
 166 // **********************************************************************************
 167 void IOPowerConnection::setAwaitingAck ( bool value )
 168 {
 169     awaitingAck = value;
 170 }
 171
 172
 173 // **********************************************************************************
 174 // getAwaitingAck
 175 //
 176 // **********************************************************************************
 177 bool IOPowerConnection::getAwaitingAck ( void )
 178 {
 179     return awaitingAck;
 180 }