iokit/Kernel/IOPowerConnection.cpp

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 #include <IOKit/pwr_mgt/IOPowerConnection.h>
  27
  28 #define super IOService
  29 OSDefineMetaClassAndStructors(IOPowerConnection,IOService)
  30
  31
  32 // **********************************************************************************
  33 // setDesiredDomainState
  34 //
  35 // Parent of the connection calls here to save the childs desire
  36 // **********************************************************************************
  37 void IOPowerConnection::setDesiredDomainState (unsigned long stateNumber )
  38 {
  39     desiredDomainState = stateNumber;
  40 }
  41
  42
  43 // **********************************************************************************
  44 // getDesiredDomainState
  45 //
  46 // **********************************************************************************
  47 unsigned long IOPowerConnection::getDesiredDomainState ( void )
  48 {
  49     return desiredDomainState;
  50 }
  51
  52
  53 // **********************************************************************************
  54 // setChildHasRequestedPower
  55 //
  56 // Parent of the connection calls here when the child requests power
  57 // **********************************************************************************
  58 void IOPowerConnection::setChildHasRequestedPower ( void )
  59 {
  60     requestFlag = true;
  61 }
  62
  63 // **********************************************************************************
  64 // childHasRequestedPower
  65 //
  66 // Parent of the connection calls here when the child requests power
  67 // **********************************************************************************
  68 bool IOPowerConnection::childHasRequestedPower ( void )
  69 {
  70     return requestFlag;
  71 }
  72
  73
  74 // **********************************************************************************
  75 // setPreventIdleSleepFlag
  76 //
  77 // **********************************************************************************
  78 void IOPowerConnection::setPreventIdleSleepFlag ( unsigned long flag )
  79 {
  80     preventIdleSleepFlag = (flag != 0);
  81 }
  82
  83
  84 // **********************************************************************************
  85 // getPreventIdleSleepFlag
  86 //
  87 // **********************************************************************************
  88 bool IOPowerConnection::getPreventIdleSleepFlag ( void )
  89 {
  90     return preventIdleSleepFlag;
  91 }
  92
  93
  94 // **********************************************************************************
  95 // setPreventSystemSleepFlag
  96 //
  97 // **********************************************************************************
  98 void IOPowerConnection::setPreventSystemSleepFlag ( unsigned long flag )
  99 {
 100     preventSystemSleepFlag = (flag != 0);
 101 }
 102
 103
 104 // **********************************************************************************
 105 // getPreventSystemSleepFlag
 106 //
 107 // **********************************************************************************
 108 bool IOPowerConnection::getPreventSystemSleepFlag ( void )
 109 {
 110     return preventSystemSleepFlag;
 111 }
 112
 113
 114 // **********************************************************************************
 115 // setParentKnowsState
 116 //
 117 // Child of the connection calls here to set its reminder that the parent does
 118 // or does not yet know the state if its domain.
 119 // **********************************************************************************
 120 void IOPowerConnection::setParentKnowsState (bool flag )
 121 {
 122     stateKnown = flag;
 123 }
 124
 125
 126 // **********************************************************************************
 127 // setParentCurrentPowerFlags
 128 //
 129 // Child of the connection calls here to save what the parent says
 130 // is the state if its domain.
 131 // **********************************************************************************
 132 void IOPowerConnection::setParentCurrentPowerFlags (IOPMPowerFlags flags )
 133 {
 134     currentPowerFlags = flags;
 135 }
 136
 137
 138 // **********************************************************************************
 139 // parentKnowsState
 140 //
 141 // **********************************************************************************
 142 bool IOPowerConnection::parentKnowsState (void )
 143 {
 144     return stateKnown;
 145 }
 146
 147
 148 // **********************************************************************************
 149 // parentCurrentPowerFlags
 150 //
 151 // **********************************************************************************
 152 IOPMPowerFlags IOPowerConnection::parentCurrentPowerFlags (void )
 153 {
 154     return currentPowerFlags;
 155 }
 156
 157
 158 // **********************************************************************************
 159 // setAwaitingAck
 160 //
 161 // **********************************************************************************
 162 void IOPowerConnection::setAwaitingAck ( bool value )
 163 {
 164     awaitingAck = value;
 165 }
 166
 167
 168 // **********************************************************************************
 169 // getAwaitingAck
 170 //
 171 // **********************************************************************************
 172 bool IOPowerConnection::getAwaitingAck ( void )
 173 {
 174     return awaitingAck;
 175 }