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Annotation of XNU/iokit/Families/IOFireWire/IOFireWireUnit.cpp, revision 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:  * HISTORY
        !            26:  * 21 May 99 wgulland created.
        !            27:  *
        !            28:  */
        !            29: 
        !            30: #define DEBUGGING_LEVEL 0      // 1 = low; 2 = high; 3 = extreme
        !            31: #define DEBUGLOG kprintf
        !            32: #include <IOKit/assert.h>
        !            33: 
        !            34: #include <IOKit/IOMessage.h>
        !            35: #include <IOKit/firewire/IOFireWireUnit.h>
        !            36: #include <IOKit/firewire/IOFireWireDevice.h>
        !            37: #include <IOKit/firewire/IOFireWireController.h>
        !            38: 
        !            39: #define super IOFireWireNub
        !            40: 
        !            41: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            42: 
        !            43: OSDefineMetaClassAndStructors(IOFireWireUnit, IOFireWireNub)
        !            44: 
        !            45: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            46: 
        !            47: bool IOFireWireUnit::attach(IOService *provider)
        !            48: {
        !            49:     fDevice = OSDynamicCast(IOFireWireDevice, provider);
        !            50:     if(!fDevice)
        !            51:        return false;
        !            52:     if( !super::attach(provider))
        !            53:         return (false);
        !            54:     fControl = fDevice->fControl;
        !            55: 
        !            56:     fROM = fDevice->fROM;
        !            57:     fROMSize = fDevice->fROMSize;
        !            58:     fNodeID = fDevice->fNodeID;
        !            59:     fLocalNodeID = fDevice->fLocalNodeID;
        !            60:     fGeneration = fDevice->fGeneration;
        !            61: 
        !            62:     return(true);
        !            63: }
        !            64: 
        !            65: IOReturn IOFireWireUnit::message( UInt32 mess, IOService * provider,
        !            66:                                 void * argument )
        !            67: {
        !            68:     if(provider == fDevice) {
        !            69:         fNodeID = fDevice->fNodeID;
        !            70:         fLocalNodeID = fDevice->fLocalNodeID;
        !            71:         fGeneration = fDevice->fGeneration;
        !            72:        messageClients( mess );
        !            73:     }
        !            74:     return kIOReturnSuccess;
        !            75: }
        !            76: 
        !            77: /*
        !            78:  * Create an iterator for the device ROM
        !            79:  */
        !            80: IOReturn IOFireWireUnit::CSRROMCreateIterator (CSRROMEntryIterator *pCSRROMIterator)
        !            81: {
        !            82:     CSRROMEntryIteratorRecPtr  pIteratorRec;
        !            83:     UInt32                     hdrSize;
        !            84: 
        !            85:     // Allocate memory for iterator record.
        !            86:     pIteratorRec = (CSRROMEntryIteratorRecPtr)IOMalloc (sizeof (CSRROMEntryIteratorRec));
        !            87:     if (pIteratorRec == NULL)
        !            88:         return kIOReturnNoMemory;
        !            89: 
        !            90:     // Fill in other record fields.
        !            91:     // Set relationship to descendants.
        !            92:     pIteratorRec->relationship = kIterateDescendants;
        !            93:     // Find start of root directory.
        !            94:     hdrSize = ((fROM[0] & kCSRBusInfoBlockLength) >> kCSRBusInfoBlockLengthPhase) + 1;
        !            95:     pIteratorRec->data = fROM;
        !            96:     pIteratorRec->logicalPath[0] = 0;
        !            97:     pIteratorRec->physicalPath[0] = hdrSize;
        !            98: 
        !            99:     pIteratorRec->logicalPath[1] = 0;
        !           100:     pIteratorRec->physicalPath[1] = pIteratorRec->physicalPath[0] + 1;
        !           101: 
        !           102:     pIteratorRec->pathSize = 2;
        !           103:     pIteratorRec->reset = true;
        !           104: 
        !           105:     // Return iterator.
        !           106:     *pCSRROMIterator = (CSRROMEntryIterator) pIteratorRec;
        !           107: 
        !           108:     return (kIOReturnSuccess);
        !           109: }
        !           110: 
        !           111: /**
        !           112:  ** Matching methods
        !           113:  **/
        !           114: bool IOFireWireUnit::matchPropertyTable(OSDictionary * table)
        !           115: {
        !           116:     //
        !           117:     // If the service object wishes to compare some of its properties in its
        !           118:     // property table against the supplied matching dictionary,
        !           119:     // it should do so in this method and return truth on success.
        !           120:     //
        !           121:     if (!super::matchPropertyTable(table))  return false;
        !           122: 
        !           123:     // We return success if the following expression is true -- individual
        !           124:     // comparisions evaluate to truth if the named property is not present
        !           125:     // in the supplied matching dictionary.
        !           126: 
        !           127:     bool res = compareProperty(table, gFireWireUnit_Spec_ID) &&
        !           128:         compareProperty(table, gFireWireUnit_SW_Version) &&
        !           129:         compareProperty(table, gFireWireVendor_ID) &&
        !           130:         compareProperty(table, gFireWire_GUID);
        !           131:     return res;
        !           132: }

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