Annotation of XNU/iokit/Families/IOATAHDDrive/IOATAHDDriveNub.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:  * IOATAHDDriveNub.cpp
        !            26:  *
        !            27:  * This subclass implements a relay to a protocol and device-specific
        !            28:  * provider.
        !            29:  *
        !            30:  * HISTORY
        !            31:  * Aug 27, 1999        jliu - Created.
        !            32:  */
        !            33: 
        !            34: #include <IOKit/IOLib.h>
        !            35: #include <IOKit/storage/ata/IOATAHDDriveNub.h>
        !            36: #include <IOKit/storage/ata/IOATAHDDrive.h>
        !            37: 
        !            38: #define        super   IOHDDriveNub
        !            39: OSDefineMetaClassAndStructors( IOATAHDDriveNub, IOHDDriveNub )
        !            40: 
        !            41: // --------------------------------------------------------------------------
        !            42: // attach to provider.
        !            43: 
        !            44: bool IOATAHDDriveNub::attach(IOService * provider)
        !            45: {    
        !            46:     if (!super::attach(provider))
        !            47:         return false;
        !            48: 
        !            49:     _provider = OSDynamicCast(IOATAHDDrive, provider);
        !            50:     if (_provider == 0) {
        !            51:         IOLog("IOATAHDDriveNub: attach; wrong provider type!\n");
        !            52:         return false;
        !            53:        }
        !            54: 
        !            55:        return true;
        !            56: }
        !            57: 
        !            58: // --------------------------------------------------------------------------
        !            59: // detach from provider.
        !            60: 
        !            61: void IOATAHDDriveNub::detach(IOService * provider)
        !            62: {
        !            63:     if (_provider == provider)
        !            64:                _provider = 0;
        !            65: 
        !            66:     super::detach(provider);
        !            67: }
        !            68: 
        !            69: // --------------------------------------------------------------------------
        !            70: // 
        !            71: 
        !            72: IOReturn IOATAHDDriveNub::doAsyncReadWrite(IOMemoryDescriptor * buffer,
        !            73:                                            UInt32               block,
        !            74:                                            UInt32               nblks,
        !            75:                                            gdCompletionFunction action,
        !            76:                                            IOService *          target,
        !            77:                                            void *               param)
        !            78: {
        !            79:        return (_provider->doAsyncReadWrite(buffer,
        !            80:                                         block,
        !            81:                                         nblks,
        !            82:                                         action,
        !            83:                                         target,
        !            84:                                         param));
        !            85: }
        !            86: 
        !            87: IOReturn IOATAHDDriveNub::doSyncReadWrite(IOMemoryDescriptor *buffer,
        !            88:                                      UInt32 block,UInt32 nblks)
        !            89: {
        !            90:         return(kIOReturnUnsupported);  //xxx must be implemented!
        !            91: }
        !            92: 
        !            93: // --------------------------------------------------------------------------
        !            94: // 
        !            95: 
        !            96: IOReturn IOATAHDDriveNub::doEjectMedia()
        !            97: {
        !            98:     return (_provider->doEjectMedia());
        !            99: }
        !           100: 
        !           101: // --------------------------------------------------------------------------
        !           102: // 
        !           103: 
        !           104: IOReturn IOATAHDDriveNub::doFormatMedia(UInt64 byteCapacity)  
        !           105: {
        !           106:     return (_provider->doFormatMedia(byteCapacity));
        !           107: }
        !           108: 
        !           109: // --------------------------------------------------------------------------
        !           110: // 
        !           111: 
        !           112: UInt32
        !           113: IOATAHDDriveNub::doGetFormatCapacities(UInt64 * capacities,
        !           114:                                        UInt32   capacitiesMaxCount) const
        !           115: {
        !           116:     return (_provider->doGetFormatCapacities(capacities, capacitiesMaxCount));
        !           117: }
        !           118: 
        !           119: // --------------------------------------------------------------------------
        !           120: // 
        !           121: 
        !           122: IOReturn IOATAHDDriveNub::doLockUnlockMedia(bool doLock)
        !           123: {
        !           124:     return (_provider->doLockUnlockMedia(doLock));
        !           125: }
        !           126: 
        !           127: // --------------------------------------------------------------------------
        !           128: // 
        !           129: 
        !           130: // --------------------------------------------------------------------------
        !           131: // 
        !           132: 
        !           133: IOReturn IOATAHDDriveNub::doSynchronizeCache()
        !           134: {
        !           135:     return (_provider->doSynchronizeCache());
        !           136: }
        !           137: 
        !           138: IOReturn IOATAHDDriveNub::executeCdb(struct cdbParams *params)
        !           139: {
        !           140:     return(kIOReturnUnsupported);              // n/a for ATA; no cdb concept
        !           141: }
        !           142: 
        !           143: // --------------------------------------------------------------------------
        !           144: // 
        !           145: 
        !           146: char * IOATAHDDriveNub::getVendorString()
        !           147: {
        !           148:     return (_provider->getVendorString());
        !           149: }
        !           150: 
        !           151: // --------------------------------------------------------------------------
        !           152: // 
        !           153: 
        !           154: char * IOATAHDDriveNub::getProductString()
        !           155: {
        !           156:     return (_provider->getProductString());
        !           157: }
        !           158: 
        !           159: // --------------------------------------------------------------------------
        !           160: // 
        !           161: 
        !           162: char * IOATAHDDriveNub::getRevisionString()
        !           163: {
        !           164:     return (_provider->getRevisionString());
        !           165: }
        !           166: 
        !           167: // --------------------------------------------------------------------------
        !           168: // 
        !           169: 
        !           170: char * IOATAHDDriveNub::getAdditionalDeviceInfoString()
        !           171: {
        !           172:     return (_provider->getAdditionalDeviceInfoString());
        !           173: }
        !           174: 
        !           175: // --------------------------------------------------------------------------
        !           176: // 
        !           177: 
        !           178: IOReturn IOATAHDDriveNub::reportBlockSize(UInt64 * blockSize)
        !           179: {
        !           180:     return (_provider->reportBlockSize(blockSize));
        !           181: }
        !           182: 
        !           183: // --------------------------------------------------------------------------
        !           184: // 
        !           185: 
        !           186: IOReturn IOATAHDDriveNub::reportEjectability(bool * isEjectable)
        !           187: {
        !           188:     return (_provider->reportEjectability(isEjectable));
        !           189: }
        !           190: 
        !           191: // --------------------------------------------------------------------------
        !           192: // 
        !           193: 
        !           194: IOReturn IOATAHDDriveNub::reportLockability(bool * isLockable)
        !           195: {
        !           196:     return (_provider->reportLockability(isLockable));
        !           197: }
        !           198: 
        !           199: // --------------------------------------------------------------------------
        !           200: // 
        !           201: 
        !           202: IOReturn IOATAHDDriveNub::reportPollRequirements(bool * pollIsRequired,
        !           203:                                                  bool * pollIsExpensive)
        !           204: {
        !           205:     return (_provider->reportPollRequirements(pollIsRequired, 
        !           206:                                               pollIsExpensive));
        !           207: }
        !           208: 
        !           209: // --------------------------------------------------------------------------
        !           210: // 
        !           211: 
        !           212: IOReturn IOATAHDDriveNub::reportMaxReadTransfer(UInt64   blockSize,
        !           213:                                                 UInt64 * max)
        !           214: {
        !           215:     return (_provider->reportMaxReadTransfer(blockSize, max));
        !           216: }
        !           217: 
        !           218: // --------------------------------------------------------------------------
        !           219: // 
        !           220: 
        !           221: IOReturn IOATAHDDriveNub::reportMaxValidBlock(UInt64 * maxBlock)
        !           222: {
        !           223:     return (_provider->reportMaxValidBlock(maxBlock));
        !           224: }
        !           225: 
        !           226: // --------------------------------------------------------------------------
        !           227: // 
        !           228: 
        !           229: IOReturn IOATAHDDriveNub::reportMaxWriteTransfer(UInt64   blockSize, 
        !           230:                                                  UInt64 * max)
        !           231: {
        !           232:     return (_provider->reportMaxWriteTransfer(blockSize, max));
        !           233: }
        !           234: 
        !           235: // --------------------------------------------------------------------------
        !           236: // 
        !           237: 
        !           238: IOReturn IOATAHDDriveNub::reportMediaState(bool * mediaPresent,
        !           239:                                            bool * changed)    
        !           240: {
        !           241:     return (_provider->reportMediaState(mediaPresent,changed));
        !           242: }
        !           243: 
        !           244: // --------------------------------------------------------------------------
        !           245: // 
        !           246: 
        !           247: IOReturn IOATAHDDriveNub::reportRemovability(bool * isRemovable)
        !           248: {
        !           249:     return (_provider->reportRemovability(isRemovable));
        !           250: }
        !           251: 
        !           252: // --------------------------------------------------------------------------
        !           253: // 
        !           254: 
        !           255: IOReturn IOATAHDDriveNub::reportWriteProtection(bool * isWriteProtected)
        !           256: {
        !           257:     return (_provider->reportWriteProtection(isWriteProtected));
        !           258: }

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