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  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  24  *
  25  */
  26
  27 #include <IOKit/assert.h>
  28 #include <IOKit/IOLib.h>
  29 #include <IOKit/IOBufferMemoryDescriptor.h>
  30 #include "RootDomainUserClient.h"
  31 #include <IOKit/pwr_mgt/IOPMLibDefs.h>
  32
  33 #define super IOUserClient
  34
  35 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  36
  37 OSDefineMetaClassAndStructors(RootDomainUserClient, IOUserClient)
  38
  39 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  40
  41 RootDomainUserClient *RootDomainUserClient::withTask(task_t owningTask)
  42 {
  43     RootDomainUserClient *me;
  44
  45     me = new RootDomainUserClient;
  46     if(me) {
  47         if(!me->init()) {
  48             me->release();
  49             return NULL;
  50         }
  51         me->fTask = owningTask;
  52     }
  53     return me;
  54 }
  55
  56 bool RootDomainUserClient::start( IOService * provider )
  57 {
  58     assert(OSDynamicCast(IOPMrootDomain, provider));
  59     if(!super::start(provider))
  60         return false;
  61     fOwner = (IOPMrootDomain *)provider;
  62
  63     // Got the owner, so initialize the call structures
  64     fMethods[kPMSetAggressiveness].object = provider;                   // 0
  65     fMethods[kPMSetAggressiveness].func = (IOMethod)&IOPMrootDomain::setAggressiveness;
  66     fMethods[kPMSetAggressiveness].count0 = 2;
  67     fMethods[kPMSetAggressiveness].count1 = 0;
  68     fMethods[kPMSetAggressiveness].flags = kIOUCScalarIScalarO;
  69
  70     fMethods[kPMGetAggressiveness].object = provider;                   // 1
  71     fMethods[kPMGetAggressiveness].func = (IOMethod)&IOPMrootDomain::getAggressiveness;
  72     fMethods[kPMGetAggressiveness].count0 = 1;
  73     fMethods[kPMGetAggressiveness].count1 = 1;
  74     fMethods[kPMGetAggressiveness].flags = kIOUCScalarIScalarO;
  75
  76     fMethods[kPMSleepSystem].object = provider;                 // 2
  77     fMethods[kPMSleepSystem].func = (IOMethod)&IOPMrootDomain::sleepSystem;
  78     fMethods[kPMSleepSystem].count0 = 0;
  79     fMethods[kPMSleepSystem].count1 = 0;
  80     fMethods[kPMSleepSystem].flags = kIOUCScalarIScalarO;
  81
  82     fMethods[kPMAllowPowerChange].object = provider;            // 3
  83     fMethods[kPMAllowPowerChange].func = (IOMethod)&IOPMrootDomain::allowPowerChange;
  84     fMethods[kPMAllowPowerChange].count0 = 1;
  85     fMethods[kPMAllowPowerChange].count1 = 0;
  86     fMethods[kPMAllowPowerChange].flags = kIOUCScalarIScalarO;
  87
  88     fMethods[kPMCancelPowerChange].object = provider;           // 4
  89     fMethods[kPMCancelPowerChange].func = (IOMethod)&IOPMrootDomain::cancelPowerChange;
  90     fMethods[kPMCancelPowerChange].count0 = 1;
  91     fMethods[kPMCancelPowerChange].count1 = 0;
  92     fMethods[kPMCancelPowerChange].flags = kIOUCScalarIScalarO;
  93
  94     return true;
  95 }
  96
  97
  98 IOReturn RootDomainUserClient::clientClose( void )
  99 {
 100     detach( fOwner);
 101
 102     return kIOReturnSuccess;
 103 }
 104
 105 IOReturn RootDomainUserClient::clientDied( void )
 106 {
 107     return( clientClose());
 108 }
 109
 110 IOExternalMethod *
 111 RootDomainUserClient::getExternalMethodForIndex( UInt32 index )
 112 {
 113     if(index >= kNumPMMethods)
 114         return NULL;
 115     else
 116         return &fMethods[index];
 117 }
 118
 119 IOReturn
 120 RootDomainUserClient::registerNotificationPort(
 121             mach_port_t port, UInt32 type )
 122 {
 123     return kIOReturnUnsupported;
 124 }
 125