iokit/Drivers/hidsystem/drvAppleADBDevices/IOADBDevice.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  * 18 June 1998 sdouglas  Start IOKit version.
  24  * 17 Nov  1998 suurballe Port objc to c++
  25  */
  26
  27 #include <IOKit/adb/IOADBDevice.h>
  28
  29 #define super IOService
  30 OSDefineMetaClassAndStructors(IOADBDevice,IOService)
  31
  32 // **********************************************************************************
  33 // init
  34 //
  35 // **********************************************************************************
  36 bool IOADBDevice::init ( OSDictionary * regEntry, ADBDeviceControl * us )
  37 {
  38 if( !super::init(regEntry))
  39     return false;
  40
  41 fBusRef = us;
  42 return true;
  43 }
  44
  45
  46 // **********************************************************************************
  47 // attach
  48 //
  49 // **********************************************************************************
  50 bool IOADBDevice::attach ( IOADBBus * controller )
  51 {
  52 if( !super::attach(controller))
  53     return false;
  54
  55 bus = controller;
  56 return true;
  57 }
  58
  59 // **********************************************************************************
  60 // matchPropertyTable
  61 //
  62 // **********************************************************************************
  63
  64 bool IOADBDevice::matchPropertyTable( OSDictionary * table )
  65 {
  66   return( bus->matchNubWithPropertyTable( this, table ));
  67 }
  68
  69 // **********************************************************************************
  70 // seizeForClient
  71 //
  72 // **********************************************************************************
  73 bool IOADBDevice::seizeForClient ( IOService * client, ADB_callback_func handler )
  74 {
  75 bus->setOwner(fBusRef,client,handler);
  76
  77 return true;
  78 }
  79
  80
  81 // **********************************************************************************
  82 // releaseFromClient
  83 //
  84 // **********************************************************************************
  85 void IOADBDevice::releaseFromClient ( IORegistryEntry * )
  86 {
  87     kprintf("IOADBDevice::releaseFromClient\n");
  88     bus->clearOwner(fBusRef);
  89 }
  90
  91
  92 // **********************************************************************************
  93 // flush
  94 //
  95 // **********************************************************************************
  96 IOReturn IOADBDevice::flush ( void )
  97 {
  98 return( bus->flush(fBusRef) );
  99 }
 100
 101
 102 // **********************************************************************************
 103 // readRegister
 104 //
 105 // **********************************************************************************
 106 IOReturn IOADBDevice::readRegister ( IOADBRegister adbRegister, UInt8 * data,
 107                 IOByteCount * length )
 108 {
 109 return( bus->readRegister(fBusRef,adbRegister,data,length) );
 110 }
 111
 112
 113 // **********************************************************************************
 114 // writeRegister
 115 //
 116 // **********************************************************************************
 117 IOReturn IOADBDevice::writeRegister ( IOADBRegister adbRegister, UInt8 * data,
 118                 IOByteCount * length )
 119 {
 120 return( bus->writeRegister(fBusRef,adbRegister,data,length) );
 121 }
 122
 123
 124 // **********************************************************************************
 125 // address
 126 //
 127 // **********************************************************************************
 128 IOADBAddress IOADBDevice::address ( void )
 129 {
 130 return( bus->address(fBusRef) );
 131 }
 132
 133
 134 // **********************************************************************************
 135 // defaultAddress
 136 //
 137 // **********************************************************************************
 138 IOADBAddress IOADBDevice::defaultAddress ( void )
 139 {
 140 return( bus->defaultAddress(fBusRef) );
 141 }
 142
 143
 144 // **********************************************************************************
 145 // handlerID
 146 //
 147 // **********************************************************************************
 148 UInt8 IOADBDevice::handlerID ( void )
 149 {
 150 return( bus->handlerID(fBusRef) );
 151 }
 152
 153
 154 // **********************************************************************************
 155 // defaultHandlerID
 156 //
 157 // **********************************************************************************
 158 UInt8 IOADBDevice::defaultHandlerID ( void )
 159 {
 160 return( bus->defaultHandlerID(fBusRef) );
 161 }
 162
 163
 164 // **********************************************************************************
 165 // setHandlerID
 166 //
 167 // **********************************************************************************
 168 IOReturn IOADBDevice::setHandlerID ( UInt8 handlerID )
 169 {
 170 return( bus->setHandlerID(fBusRef,handlerID) );
 171 }
 172
 173
 174 // **********************************************************************************
 175 // busRef
 176 //
 177 // **********************************************************************************
 178 void * IOADBDevice::busRef ( void )
 179 {
 180 return fBusRef;
 181 }