iokit/Drivers/platform/drvAppleRootDomain/RootDomainUserClient.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  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  27  *
  28  */
  29
  30 #include <IOKit/assert.h>
  31 #include <IOKit/IOLib.h>
  32 #include <IOKit/IOBufferMemoryDescriptor.h>
  33 #include "RootDomainUserClient.h"
  34 #include <IOKit/pwr_mgt/IOPMLibDefs.h>
  35
  36 #define super IOUserClient
  37
  38 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  39
  40 OSDefineMetaClassAndStructors(RootDomainUserClient, IOUserClient)
  41
  42 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  43
  44 RootDomainUserClient *RootDomainUserClient::withTask(task_t owningTask)
  45 {
  46     RootDomainUserClient *me;
  47
  48     me = new RootDomainUserClient;
  49     if(me) {
  50         if(!me->init()) {
  51             me->release();
  52             return NULL;
  53         }
  54         me->fTask = owningTask;
  55     }
  56     return me;
  57 }
  58
  59 bool RootDomainUserClient::start( IOService * provider )
  60 {
  61     assert(OSDynamicCast(IOPMrootDomain, provider));
  62     if(!super::start(provider))
  63         return false;
  64     fOwner = (IOPMrootDomain *)provider;
  65
  66     // Got the owner, so initialize the call structures
  67     fMethods[kPMSetAggressiveness].object = provider;                   // 0
  68     fMethods[kPMSetAggressiveness].func = (IOMethod)&IOPMrootDomain::setAggressiveness;
  69     fMethods[kPMSetAggressiveness].count0 = 2;
  70     fMethods[kPMSetAggressiveness].count1 = 0;
  71     fMethods[kPMSetAggressiveness].flags = kIOUCScalarIScalarO;
  72
  73     fMethods[kPMGetAggressiveness].object = provider;                   // 1
  74     fMethods[kPMGetAggressiveness].func = (IOMethod)&IOPMrootDomain::getAggressiveness;
  75     fMethods[kPMGetAggressiveness].count0 = 1;
  76     fMethods[kPMGetAggressiveness].count1 = 1;
  77     fMethods[kPMGetAggressiveness].flags = kIOUCScalarIScalarO;
  78
  79     fMethods[kPMSleepSystem].object = provider;                 // 2
  80     fMethods[kPMSleepSystem].func = (IOMethod)&IOPMrootDomain::sleepSystem;
  81     fMethods[kPMSleepSystem].count0 = 0;
  82     fMethods[kPMSleepSystem].count1 = 0;
  83     fMethods[kPMSleepSystem].flags = kIOUCScalarIScalarO;
  84
  85     fMethods[kPMAllowPowerChange].object = provider;            // 3
  86     fMethods[kPMAllowPowerChange].func = (IOMethod)&IOPMrootDomain::allowPowerChange;
  87     fMethods[kPMAllowPowerChange].count0 = 1;
  88     fMethods[kPMAllowPowerChange].count1 = 0;
  89     fMethods[kPMAllowPowerChange].flags = kIOUCScalarIScalarO;
  90
  91     fMethods[kPMCancelPowerChange].object = provider;           // 4
  92     fMethods[kPMCancelPowerChange].func = (IOMethod)&IOPMrootDomain::cancelPowerChange;
  93     fMethods[kPMCancelPowerChange].count0 = 1;
  94     fMethods[kPMCancelPowerChange].count1 = 0;
  95     fMethods[kPMCancelPowerChange].flags = kIOUCScalarIScalarO;
  96
  97     fMethods[kPMShutdownSystem].object = provider;              // 5
  98     fMethods[kPMShutdownSystem].func = (IOMethod)&IOPMrootDomain::shutdownSystem;
  99     fMethods[kPMShutdownSystem].count0 = 0;
 100     fMethods[kPMShutdownSystem].count1 = 0;
 101     fMethods[kPMShutdownSystem].flags = kIOUCScalarIScalarO;
 102
 103     fMethods[kPMRestartSystem].object = provider;               // 6
 104     fMethods[kPMRestartSystem].func = (IOMethod)&IOPMrootDomain::restartSystem;
 105     fMethods[kPMRestartSystem].count0 = 0;
 106     fMethods[kPMRestartSystem].count1 = 0;
 107     fMethods[kPMRestartSystem].flags = kIOUCScalarIScalarO;
 108
 109     return true;
 110 }
 111
 112
 113 IOReturn RootDomainUserClient::clientClose( void )
 114 {
 115     detach( fOwner);
 116
 117     return kIOReturnSuccess;
 118 }
 119
 120 IOReturn RootDomainUserClient::clientDied( void )
 121 {
 122     return( clientClose());
 123 }
 124
 125 IOExternalMethod *
 126 RootDomainUserClient::getExternalMethodForIndex( UInt32 index )
 127 {
 128     if(index >= kNumPMMethods)
 129         return NULL;
 130     else
 131         return &fMethods[index];
 132 }
 133
 134 IOReturn
 135 RootDomainUserClient::registerNotificationPort(
 136             mach_port_t port, UInt32 type )
 137 {
 138     return kIOReturnUnsupported;
 139 }
 140