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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 2006-2009 Apple Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. Please obtain a copy of the License at␊ |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this␊ |
| 11 | * file.␊ |
| 12 | * ␊ |
| 13 | * The Original Code and all software distributed under the License are␊ |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 18 | * Please see the License for the specific language governing rights and␊ |
| 19 | * limitations under the License.␊ |
| 20 | * ␊ |
| 21 | * @APPLE_LICENSE_HEADER_END@␊ |
| 22 | */␊ |
| 23 | ␊ |
| 24 | /*!␊ |
| 25 | * @header IOBDBlockStorageDriver␊ |
| 26 | * @abstract␊ |
| 27 | * This header contains the IOBDBlockStorageDriver class definition.␊ |
| 28 | * @discussion␊ |
| 29 | * This class implements BD functionality, independent of␊ |
| 30 | * the physical connection protocol (e.g. SCSI, ATA, USB).␊ |
| 31 | *␊ |
| 32 | * A protocol-specific provider implements the functionality using an appropriate␊ |
| 33 | * protocol and commands.␊ |
| 34 | */␊ |
| 35 | ␊ |
| 36 | #ifndef␉_IOBDBLOCKSTORAGEDRIVER_H␊ |
| 37 | #define␉_IOBDBLOCKSTORAGEDRIVER_H␊ |
| 38 | ␊ |
| 39 | #include <IOKit/storage/IOBDBlockStorageDevice.h>␊ |
| 40 | #include <IOKit/storage/IODVDBlockStorageDriver.h>␊ |
| 41 | ␊ |
| 42 | /*!␊ |
| 43 | * @defined kIOBDBlockStorageDriverClass␊ |
| 44 | * @abstract␊ |
| 45 | * kIOBDBlockStorageDriverClass is the name of the IOBDBlockStorageDriver class.␊ |
| 46 | * @discussion␊ |
| 47 | * kIOBDBlockStorageDriverClass is the name of the IOBDBlockStorageDriver class.␊ |
| 48 | */␊ |
| 49 | ␊ |
| 50 | #define kIOBDBlockStorageDriverClass "IOBDBlockStorageDriver"␊ |
| 51 | ␊ |
| 52 | /*!␊ |
| 53 | * @class␊ |
| 54 | * IOBDBlockStorageDriver␊ |
| 55 | * @abstract␊ |
| 56 | * Generic BD Driver.␊ |
| 57 | * @discussion␊ |
| 58 | * Storage drivers are split into two parts: the Generic Driver handles␊ |
| 59 | * all generic device issues, independent of the lower-level transport␊ |
| 60 | * mechanism (e.g. SCSI, ATA, USB, FireWire). All storage operations␊ |
| 61 | * at the Generic Driver level are translated into a series of generic␊ |
| 62 | * device operations. These operations are passed via the Device Nub␊ |
| 63 | * to a Transport Driver, which implements the appropriate␊ |
| 64 | * transport-dependent protocol to execute these operations.␊ |
| 65 | * ␊ |
| 66 | * To determine the write-protect state of a device (or media), for␊ |
| 67 | * example, the generic driver would issue a call to the␊ |
| 68 | * Transport Driver's reportWriteProtection method. If this were a SCSI␊ |
| 69 | * device, its Transport Driver would issue a Mode Sense command to␊ |
| 70 | * extract the write-protection status bit. The Transport Driver then␊ |
| 71 | * reports true or false to the generic driver.␊ |
| 72 | * ␊ |
| 73 | * The generic driver therefore has no knowledge of, or involvement␊ |
| 74 | * with, the actual commands and mechanisms used to communicate with␊ |
| 75 | * the device. It is expected that the generic driver will rarely, if␊ |
| 76 | * ever, need to be subclassed to handle device idiosyncrasies; rather,␊ |
| 77 | * the Transport Driver should be changed via overrides.␊ |
| 78 | * ␊ |
| 79 | * A generic driver could be subclassed to create a different type of␊ |
| 80 | * generic device. The generic driver IOBDBlockStorageDriver class is a subclass␊ |
| 81 | * of IODVDBlockStorageDriver, adding BD functions. Similarly, the Transport Driver␊ |
| 82 | * IOBDBlockStorageDevice is a subclass of IODVDBlockStorageDevice, adding BD ␊ |
| 83 | * functions.␊ |
| 84 | */␊ |
| 85 | ␊ |
| 86 | class IOBDBlockStorageDriver : public IODVDBlockStorageDriver␊ |
| 87 | {␊ |
| 88 | OSDeclareDefaultStructors(IOBDBlockStorageDriver)␊ |
| 89 | ␊ |
| 90 | protected:␊ |
| 91 | ␊ |
| 92 | struct ExpansionData { /* */ };␊ |
| 93 | ExpansionData * _expansionData;␊ |
| 94 | ␊ |
| 95 | /* Overrides of IODVDBlockStorageDriver. */␊ |
| 96 | ␊ |
| 97 | virtual IOReturn acceptNewMedia(void);␊ |
| 98 | ␊ |
| 99 | /* End of IODVDBlockStorageDriver overrides. */␊ |
| 100 | ␊ |
| 101 | public:␊ |
| 102 | ␊ |
| 103 | /*␊ |
| 104 | * Obtain this object's provider. We override the superclass's method to␊ |
| 105 | * return a more specific subclass of IOService -- IOBDBlockStorageDevice.␊ |
| 106 | * This method serves simply as a convenience to subclass developers.␊ |
| 107 | */␊ |
| 108 | ␊ |
| 109 | virtual IOBDBlockStorageDevice * getProvider() const;␊ |
| 110 | ␊ |
| 111 | /* Overrides of IODVDBlockStorageDriver: */␊ |
| 112 | ␊ |
| 113 | virtual const char * getDeviceTypeName(void);␊ |
| 114 | virtual IOMedia * instantiateDesiredMediaObject(void);␊ |
| 115 | virtual IOMedia * instantiateMediaObject(UInt64 base,UInt64 byteSize,␊ |
| 116 | UInt32 blockSize,char *mediaName);␊ |
| 117 | virtual IOReturn readStructure(IOMemoryDescriptor *buffer,const DVDStructureFormat format,␊ |
| 118 | const UInt32 address,const UInt8 layer,const UInt8 agid);␊ |
| 119 | ␊ |
| 120 | /* End of IODVDBlockStorageDriver overrides. */␊ |
| 121 | ␊ |
| 122 | /*!␊ |
| 123 | * @function splitTrack␊ |
| 124 | * @discussion␊ |
| 125 | * Issue an MMC RESERVE TRACK command with the ARSV bit.␊ |
| 126 | * @param address␊ |
| 127 | * As documented by MMC.␊ |
| 128 | * @result␊ |
| 129 | * Returns the status of the operation.␊ |
| 130 | */␊ |
| 131 | ␊ |
| 132 | virtual IOReturn splitTrack(UInt32 address);␊ |
| 133 | ␊ |
| 134 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 0);␊ |
| 135 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 1);␊ |
| 136 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 2);␊ |
| 137 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 3);␊ |
| 138 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 4);␊ |
| 139 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 5);␊ |
| 140 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 6);␊ |
| 141 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 7);␊ |
| 142 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 8);␊ |
| 143 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 9);␊ |
| 144 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 10);␊ |
| 145 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 11);␊ |
| 146 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 12);␊ |
| 147 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 13);␊ |
| 148 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 14);␊ |
| 149 | OSMetaClassDeclareReservedUnused(IOBDBlockStorageDriver, 15);␊ |
| 150 | };␊ |
| 151 | ␊ |
| 152 | #endif /* !_IOBDBLOCKSTORAGEDRIVER_H */␊ |
| 153 | |
