iokit/Families/IODVDStorage/IODVDBlockStorageDriver.cpp

   1 /*
   2  * Copyright (c) 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 #include <IOKit/IOLib.h>
  23 #include <IOKit/storage/IODVDBlockStorageDevice.h>
  24 #include <IOKit/storage/IODVDBlockStorageDriver.h>
  25 #include <IOKit/storage/IODVDMedia.h>
  26
  27 #define super   IOCDBlockStorageDriver
  28 OSDefineMetaClassAndStructors(IODVDBlockStorageDriver,IOCDBlockStorageDriver)
  29
  30 IODVDBlockStorageDevice *
  31 IODVDBlockStorageDriver::getProvider() const
  32 {
  33     return (IODVDBlockStorageDevice *) IOService::getProvider();
  34 }
  35
  36 /* Accept a new piece of media, doing whatever's necessary to make it
  37  * show up properly to the system.
  38  */
  39 IOReturn
  40 IODVDBlockStorageDriver::acceptNewMedia(void)
  41 {
  42     UInt32 mediaType = getMediaType();
  43
  44     if (mediaType >= kCDMediaTypeMin && mediaType <= kCDMediaTypeMax) {
  45         return IOCDBlockStorageDriver::acceptNewMedia();
  46     } else {
  47         return IOBlockStorageDriver::acceptNewMedia();
  48     }
  49 }
  50
  51 const char *
  52 IODVDBlockStorageDriver::getDeviceTypeName(void)
  53 {
  54     return(kIOBlockStorageDeviceTypeDVD);
  55 }
  56
  57 IOMedia *
  58 IODVDBlockStorageDriver::instantiateDesiredMediaObject(void)
  59 {
  60     UInt32 mediaType = getMediaType();
  61
  62     if (mediaType >= kCDMediaTypeMin && mediaType <= kCDMediaTypeMax) {
  63         return IOCDBlockStorageDriver::instantiateDesiredMediaObject();
  64     } else {
  65         return(new IODVDMedia);
  66     }
  67 }
  68
  69 IOMedia *
  70 IODVDBlockStorageDriver::instantiateMediaObject(UInt64 base,UInt64 byteSize,
  71                                         UInt32 blockSize,char *mediaName)
  72 {
  73     IOMedia *media = NULL;
  74     UInt32 mediaType = getMediaType();
  75
  76     if (mediaType >= kCDMediaTypeMin && mediaType <= kCDMediaTypeMax) {
  77         return IOCDBlockStorageDriver::instantiateMediaObject(
  78                                              base,byteSize,blockSize,mediaName);
  79     } else {
  80         media = IOBlockStorageDriver::instantiateMediaObject(
  81                                              base,byteSize,blockSize,mediaName);
  82     }
  83
  84     if (media) {
  85         char *description = NULL;
  86
  87         switch (mediaType) {
  88             case kDVDMediaTypeROM:
  89                 description = kIODVDMediaTypeROM;
  90                 break;
  91             case kDVDMediaTypeRAM:
  92                 description = kIODVDMediaTypeRAM;
  93                 break;
  94             case kDVDMediaTypeR:
  95                 description = kIODVDMediaTypeR;
  96                 break;
  97             case kDVDMediaTypeRW:
  98                 description = kIODVDMediaTypeRW;
  99                 break;
 100             case kDVDMediaTypePlusRW:
 101                 description = kIODVDMediaTypePlusRW;
 102                 break;
 103         }
 104
 105         if (description) {
 106             media->setProperty(kIODVDMediaTypeKey, description);
 107         }
 108     }
 109
 110     return media;
 111 }
 112
 113 IOReturn
 114 IODVDBlockStorageDriver::reportKey(IOMemoryDescriptor *buffer,const DVDKeyClass keyClass,
 115                                         const UInt32 lba,const UInt8 agid,const DVDKeyFormat keyFormat)
 116 {
 117     return(getProvider()->reportKey(buffer,keyClass,lba,agid,keyFormat));
 118 }
 119
 120 IOReturn
 121 IODVDBlockStorageDriver::sendKey(IOMemoryDescriptor *buffer,const DVDKeyClass keyClass,
 122                                         const UInt8 agid,const DVDKeyFormat keyFormat)
 123 {
 124     return(getProvider()->sendKey(buffer,keyClass,agid,keyFormat));
 125 }
 126
 127 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  0);
 128 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  1);
 129 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  2);
 130 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  3);
 131 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  4);
 132 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  5);
 133 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  6);
 134 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  7);
 135 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  8);
 136 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver,  9);
 137 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 10);
 138 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 11);
 139 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 12);
 140 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 13);
 141 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 14);
 142 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 15);
 143 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 16);
 144 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 17);
 145 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 18);
 146 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 19);
 147 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 20);
 148 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 21);
 149 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 22);
 150 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 23);
 151 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 24);
 152 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 25);
 153 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 26);
 154 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 27);
 155 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 28);
 156 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 29);
 157 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 30);
 158 OSMetaClassDefineReservedUnused(IODVDBlockStorageDriver, 31);