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Annotation of XNU/iokit/Families/IOADBBus/IOADBControllerUserClient.cpp, revision 1.1.1.1

1.1       root        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 "IOADBControllerUserClient.h"
                     31: 
                     32: #define super IOUserClient
                     33: 
                     34: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
                     35: 
                     36: OSDefineMetaClassAndStructors(IOADBControllerUserClient, IOUserClient)
                     37: 
                     38: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
                     39: 
                     40: IOADBControllerUserClient *IOADBControllerUserClient::withTask(task_t owningTask)
                     41: {
                     42:     IOADBControllerUserClient * me;
                     43: 
                     44:     me = new IOADBControllerUserClient;
                     45:     if ( me ) {
                     46:         if  (! me->init() ) {
                     47:             me->release();
                     48:             return NULL;
                     49:         }
                     50:         me->fTask = owningTask;
                     51:     }
                     52:     return me;
                     53: }
                     54: 
                     55: bool IOADBControllerUserClient::start( IOService * provider )
                     56: {
                     57:     assert(OSDynamicCast(IOADBController, provider));
                     58:     if(!super::start(provider))
                     59:         return false;
                     60:     fOwner = (IOADBController *)provider;
                     61: 
                     62:     // Got the owner, so initialize the call structures
                     63:     fMethods[kADBReadDevice].object = provider;
                     64:     fMethods[kADBReadDevice].func = (IOMethod)&IOADBController::readDeviceForUser;
                     65:     fMethods[kADBReadDevice].count0 = 2;
                     66:     fMethods[kADBReadDevice].count1 = 8;
                     67:     fMethods[kADBReadDevice].flags = kIOUCScalarIStructO;
                     68: 
                     69:     fMethods[kADBWriteDevice].object = provider;
                     70:     fMethods[kADBWriteDevice].func = (IOMethod)&IOADBController::writeDeviceForUser;
                     71:     fMethods[kADBWriteDevice].count0 = 4;
                     72:     fMethods[kADBWriteDevice].count1 = 0;
                     73:     fMethods[kADBWriteDevice].flags = kIOUCScalarIScalarO;
                     74: 
                     75:     fMethods[kADBClaimDevice].object = provider;
                     76:     fMethods[kADBClaimDevice].func = (IOMethod)&IOADBController::claimDevice;
                     77:     fMethods[kADBClaimDevice].count0 = 1;
                     78:     fMethods[kADBClaimDevice].count1 = 0;
                     79:     fMethods[kADBClaimDevice].flags = kIOUCScalarIScalarO;
                     80: 
                     81:     fMethods[kADBReleaseDevice].object = provider;
                     82:     fMethods[kADBReleaseDevice].func = (IOMethod)&IOADBController::releaseDevice;
                     83:     fMethods[kADBReleaseDevice].count0 = 1;
                     84:     fMethods[kADBReleaseDevice].count1 = 0;
                     85:     fMethods[kADBReleaseDevice].flags = kIOUCScalarIScalarO;
                     86: 
                     87:     return true;
                     88: }
                     89: 
                     90: IOReturn IOADBControllerUserClient::clientMemoryForType( UInt32 type,
                     91:     UInt32 * flags, IOLogicalAddress * address, IOByteCount * size )
                     92: {
                     93:     return kIOReturnUnsupported;
                     94: }
                     95: 
                     96: IOReturn IOADBControllerUserClient::clientClose( void )
                     97: {
                     98:     detach( fOwner);
                     99: 
                    100:     return kIOReturnSuccess;
                    101: }
                    102: 
                    103: IOReturn IOADBControllerUserClient::clientDied( void )
                    104: {
                    105:     return( clientClose());
                    106: }
                    107: 
                    108: IOReturn IOADBControllerUserClient::connectClient( IOUserClient * client )
                    109: {
                    110:     return kIOReturnSuccess;
                    111: }
                    112: 
                    113: IOExternalMethod * IOADBControllerUserClient::getExternalMethodForIndex( UInt32 index )
                    114: {
                    115:     if(index >= kNumADBMethods)
                    116:        return NULL;
                    117:     else
                    118:         return &fMethods[index];
                    119: }
                    120: 
                    121: IOReturn IOADBControllerUserClient::registerNotificationPort ( mach_port_t port, UInt32 type )
                    122: {
                    123:     return kIOReturnUnsupported;
                    124: }
                    125: 

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