iokit/Families/IOADBBus/IOADBControllerUserClient.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 "IOADBControllerUserClient.h"
  34
  35 #define super IOUserClient
  36
  37 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  38
  39 OSDefineMetaClassAndStructors(IOADBControllerUserClient, IOUserClient)
  40
  41 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  42
  43 IOADBControllerUserClient *IOADBControllerUserClient::withTask(task_t owningTask)
  44 {
  45     IOADBControllerUserClient * me;
  46
  47     me = new IOADBControllerUserClient;
  48     if ( me ) {
  49         if  (! me->init() ) {
  50             me->release();
  51             return NULL;
  52         }
  53         me->fTask = owningTask;
  54     }
  55     return me;
  56 }
  57
  58 bool IOADBControllerUserClient::start( IOService * provider )
  59 {
  60     assert(OSDynamicCast(IOADBController, provider));
  61     if(!super::start(provider))
  62         return false;
  63     fOwner = (IOADBController *)provider;
  64
  65     // Got the owner, so initialize the call structures
  66     fMethods[kADBReadDevice].object = provider;
  67     fMethods[kADBReadDevice].func = (IOMethod)&IOADBController::readDeviceForUser;
  68     fMethods[kADBReadDevice].count0 = 2;
  69     fMethods[kADBReadDevice].count1 = 8;
  70     fMethods[kADBReadDevice].flags = kIOUCScalarIStructO;
  71
  72     fMethods[kADBWriteDevice].object = provider;
  73     fMethods[kADBWriteDevice].func = (IOMethod)&IOADBController::writeDeviceForUser;
  74     fMethods[kADBWriteDevice].count0 = 4;
  75     fMethods[kADBWriteDevice].count1 = 0;
  76     fMethods[kADBWriteDevice].flags = kIOUCScalarIScalarO;
  77
  78     fMethods[kADBClaimDevice].object = provider;
  79     fMethods[kADBClaimDevice].func = (IOMethod)&IOADBController::claimDevice;
  80     fMethods[kADBClaimDevice].count0 = 1;
  81     fMethods[kADBClaimDevice].count1 = 0;
  82     fMethods[kADBClaimDevice].flags = kIOUCScalarIScalarO;
  83
  84     fMethods[kADBReleaseDevice].object = provider;
  85     fMethods[kADBReleaseDevice].func = (IOMethod)&IOADBController::releaseDevice;
  86     fMethods[kADBReleaseDevice].count0 = 1;
  87     fMethods[kADBReleaseDevice].count1 = 0;
  88     fMethods[kADBReleaseDevice].flags = kIOUCScalarIScalarO;
  89
  90     return true;
  91 }
  92
  93 IOReturn IOADBControllerUserClient::clientMemoryForType( UInt32 type,
  94     UInt32 * flags, IOLogicalAddress * address, IOByteCount * size )
  95 {
  96     return kIOReturnUnsupported;
  97 }
  98
  99 IOReturn IOADBControllerUserClient::clientClose( void )
 100 {
 101     detach( fOwner);
 102
 103     return kIOReturnSuccess;
 104 }
 105
 106 IOReturn IOADBControllerUserClient::clientDied( void )
 107 {
 108     return( clientClose());
 109 }
 110
 111 IOReturn IOADBControllerUserClient::connectClient( IOUserClient * client )
 112 {
 113     return kIOReturnSuccess;
 114 }
 115
 116 IOExternalMethod * IOADBControllerUserClient::getExternalMethodForIndex( UInt32 index )
 117 {
 118     if(index >= kNumADBMethods)
 119         return NULL;
 120     else
 121         return &fMethods[index];
 122 }
 123
 124 IOReturn IOADBControllerUserClient::registerNotificationPort ( mach_port_t port, UInt32 type )
 125 {
 126     return kIOReturnUnsupported;
 127 }
 128