iokit/Kernel/IOPowerConnection.cpp

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <IOKit/pwr_mgt/IOPowerConnection.h>
  25
  26 #define super IOService
  27 OSDefineMetaClassAndStructors(IOPowerConnection,IOService)
  28
  29
  30 // **********************************************************************************
  31 // setDesiredDomainState
  32 //
  33 // Parent of the connection calls here to save the childs desire
  34 // **********************************************************************************
  35 void IOPowerConnection::setDesiredDomainState (unsigned long stateNumber )
  36 {
  37     desiredDomainState = stateNumber;
  38 }
  39
  40
  41 // **********************************************************************************
  42 // getDesiredDomainState
  43 //
  44 // **********************************************************************************
  45 unsigned long IOPowerConnection::getDesiredDomainState ( void )
  46 {
  47     return desiredDomainState;
  48 }
  49
  50
  51 // **********************************************************************************
  52 // setChildHasRequestedPower
  53 //
  54 // Parent of the connection calls here when the child requests power
  55 // **********************************************************************************
  56 void IOPowerConnection::setChildHasRequestedPower ( void )
  57 {
  58     requestFlag = true;
  59 }
  60
  61 // **********************************************************************************
  62 // childHasRequestedPower
  63 //
  64 // Parent of the connection calls here when the child requests power
  65 // **********************************************************************************
  66 bool IOPowerConnection::childHasRequestedPower ( void )
  67 {
  68     return requestFlag;
  69 }
  70
  71
  72 // **********************************************************************************
  73 // setPreventIdleSleepFlag
  74 //
  75 // **********************************************************************************
  76 void IOPowerConnection::setPreventIdleSleepFlag ( unsigned long flag )
  77 {
  78     preventIdleSleepFlag = (flag != 0);
  79 }
  80
  81
  82 // **********************************************************************************
  83 // getPreventIdleSleepFlag
  84 //
  85 // **********************************************************************************
  86 bool IOPowerConnection::getPreventIdleSleepFlag ( void )
  87 {
  88     return preventIdleSleepFlag;
  89 }
  90
  91
  92 // **********************************************************************************
  93 // setPreventSystemSleepFlag
  94 //
  95 // **********************************************************************************
  96 void IOPowerConnection::setPreventSystemSleepFlag ( unsigned long flag )
  97 {
  98     preventSystemSleepFlag = (flag != 0);
  99 }
 100
 101
 102 // **********************************************************************************
 103 // getPreventSystemSleepFlag
 104 //
 105 // **********************************************************************************
 106 bool IOPowerConnection::getPreventSystemSleepFlag ( void )
 107 {
 108     return preventSystemSleepFlag;
 109 }
 110
 111
 112 // **********************************************************************************
 113 // setParentKnowsState
 114 //
 115 // Child of the connection calls here to set its reminder that the parent does
 116 // or does not yet know the state if its domain.
 117 // **********************************************************************************
 118 void IOPowerConnection::setParentKnowsState (bool flag )
 119 {
 120     stateKnown = flag;
 121 }
 122
 123
 124 // **********************************************************************************
 125 // setParentCurrentPowerFlags
 126 //
 127 // Child of the connection calls here to save what the parent says
 128 // is the state if its domain.
 129 // **********************************************************************************
 130 void IOPowerConnection::setParentCurrentPowerFlags (IOPMPowerFlags flags )
 131 {
 132     currentPowerFlags = flags;
 133 }
 134
 135
 136 // **********************************************************************************
 137 // parentKnowsState
 138 //
 139 // **********************************************************************************
 140 bool IOPowerConnection::parentKnowsState (void )
 141 {
 142     return stateKnown;
 143 }
 144
 145
 146 // **********************************************************************************
 147 // parentCurrentPowerFlags
 148 //
 149 // **********************************************************************************
 150 IOPMPowerFlags IOPowerConnection::parentCurrentPowerFlags (void )
 151 {
 152     return currentPowerFlags;
 153 }
 154
 155
 156 // **********************************************************************************
 157 // setAwaitingAck
 158 //
 159 // **********************************************************************************
 160 void IOPowerConnection::setAwaitingAck ( bool value )
 161 {
 162     awaitingAck = value;
 163 }
 164
 165
 166 // **********************************************************************************
 167 // getAwaitingAck
 168 //
 169 // **********************************************************************************
 170 bool IOPowerConnection::getAwaitingAck ( void )
 171 {
 172     return awaitingAck;
 173 }