iokit/Families/IOADBBus/IOADBDevice.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  * 18 June 1998 sdouglas  Start IOKit version.
  27  * 17 Nov  1998 suurballe Port objc to c++
  28  */
  29
  30 #include <IOKit/adb/IOADBDevice.h>
  31
  32 #define super IOService
  33 OSDefineMetaClassAndStructors(IOADBDevice,IOService)
  34
  35 // **********************************************************************************
  36 // init
  37 //
  38 // **********************************************************************************
  39 bool IOADBDevice::init ( OSDictionary * regEntry, ADBDeviceControl * us )
  40 {
  41 if( !super::init(regEntry))
  42     return false;
  43
  44 fBusRef = us;
  45 return true;
  46 }
  47
  48
  49 // **********************************************************************************
  50 // attach
  51 //
  52 // **********************************************************************************
  53 bool IOADBDevice::attach ( IOADBBus * controller )
  54 {
  55 if( !super::attach(controller))
  56     return false;
  57
  58 bus = controller;
  59 return true;
  60 }
  61
  62 // **********************************************************************************
  63 // matchPropertyTable
  64 //
  65 // **********************************************************************************
  66
  67 bool IOADBDevice::matchPropertyTable( OSDictionary * table )
  68 {
  69   return( bus->matchNubWithPropertyTable( this, table ));
  70 }
  71
  72 // **********************************************************************************
  73 // seizeForClient
  74 //
  75 // **********************************************************************************
  76 bool IOADBDevice::seizeForClient ( IOService * client, ADB_callback_func handler )
  77 {
  78 bus->setOwner(fBusRef,client,handler);
  79
  80 return true;
  81 }
  82
  83
  84 // **********************************************************************************
  85 // releaseFromClient
  86 //
  87 // **********************************************************************************
  88 void IOADBDevice::releaseFromClient ( IORegistryEntry * )
  89 {
  90     kprintf("IOADBDevice::releaseFromClient\n");
  91     bus->clearOwner(fBusRef);
  92 }
  93
  94
  95 // **********************************************************************************
  96 // flush
  97 //
  98 // **********************************************************************************
  99 IOReturn IOADBDevice::flush ( void )
 100 {
 101 if ( isInactive() ) {
 102     return kIOReturnNotOpen;
 103 }
 104 return( bus->flush(fBusRef) );
 105 }
 106
 107
 108 // **********************************************************************************
 109 // readRegister
 110 //
 111 // **********************************************************************************
 112 IOReturn IOADBDevice::readRegister ( IOADBRegister adbRegister, UInt8 * data,
 113                 IOByteCount * length )
 114 {
 115 if ( isInactive() ) {
 116     return kIOReturnNotOpen;
 117 }
 118 return( bus->readRegister(fBusRef,adbRegister,data,length) );
 119 }
 120
 121
 122 // **********************************************************************************
 123 // writeRegister
 124 //
 125 // **********************************************************************************
 126 IOReturn IOADBDevice::writeRegister ( IOADBRegister adbRegister, UInt8 * data,
 127                 IOByteCount * length )
 128 {
 129 if ( isInactive() ) {
 130     return kIOReturnNotOpen;
 131 }
 132 return( bus->writeRegister(fBusRef,adbRegister,data,length) );
 133 }
 134
 135
 136 // **********************************************************************************
 137 // address
 138 //
 139 // **********************************************************************************
 140 IOADBAddress IOADBDevice::address ( void )
 141 {
 142 return( bus->address(fBusRef) );
 143 }
 144
 145
 146 // **********************************************************************************
 147 // defaultAddress
 148 //
 149 // **********************************************************************************
 150 IOADBAddress IOADBDevice::defaultAddress ( void )
 151 {
 152 return( bus->defaultAddress(fBusRef) );
 153 }
 154
 155
 156 // **********************************************************************************
 157 // handlerID
 158 //
 159 // **********************************************************************************
 160 UInt8 IOADBDevice::handlerID ( void )
 161 {
 162 return( bus->handlerID(fBusRef) );
 163 }
 164
 165
 166 // **********************************************************************************
 167 // defaultHandlerID
 168 //
 169 // **********************************************************************************
 170 UInt8 IOADBDevice::defaultHandlerID ( void )
 171 {
 172 return( bus->defaultHandlerID(fBusRef) );
 173 }
 174
 175
 176 // **********************************************************************************
 177 // setHandlerID
 178 //
 179 // **********************************************************************************
 180 IOReturn IOADBDevice::setHandlerID ( UInt8 handlerID )
 181 {
 182 return( bus->setHandlerID(fBusRef,handlerID) );
 183 }
 184
 185
 186 // **********************************************************************************
 187 // busRef
 188 //
 189 // **********************************************************************************
 190 void * IOADBDevice::busRef ( void )
 191 {
 192 return fBusRef;
 193 }