IOBDTypes.h   [plain text]

/*
 * Copyright (c) 2006-2009 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef	_BDTYPES_H
#define	_BDTYPES_H

#include <IOKit/IOTypes.h>

#pragma pack(push, 1)                        /* (enable 8-bit struct packing) */

/*
 * Media Types
 */

enum
{
    kBDMediaTypeUnknown   = 0x0300,
    kBDMediaTypeROM       = 0x0302, /* BD-ROM */
    kBDMediaTypeRE        = 0x0303, /* BD-RE  */
    kBDMediaTypeR         = 0x0304, /* BD-R   */

    kBDMediaTypeMin       = 0x0300,
    kBDMediaTypeMax       = 0x03FF
};

typedef UInt32 BDMediaType;

/*
 * Media Speed (kB/s)
 */

#define kBDSpeedMin 0x1126
#define kBDSpeedMax 0xFFFF

/*
 * MMC Formats
 */

// Read Disc Information Format
struct BDDiscInfo
{
    UInt16 dataLength;
#ifdef __LITTLE_ENDIAN__
    UInt8  discStatus:2;
    UInt8  stateOfLastSession:2;
    UInt8  erasable:1;
    UInt8  dataType:3;
#else /* !__LITTLE_ENDIAN__ */
    UInt8  dataType:3;
    UInt8  erasable:1;
    UInt8  stateOfLastSession:2;
    UInt8  discStatus:2;
#endif /* !__LITTLE_ENDIAN__ */
    UInt8  reserved2;
    UInt8  numberOfSessionsLSB;
    UInt8  firstTrackNumberInLastSessionLSB;
    UInt8  lastTrackNumberInLastSessionLSB;
    UInt8  reserved4[2];
    UInt8  numberOfSessionsMSB;
    UInt8  firstTrackNumberInLastSessionMSB;
    UInt8  lastTrackNumberInLastSessionMSB;
    UInt8  reserved6[22];
};
typedef struct BDDiscInfo BDDiscInfo;

// Read Track Information Format
struct BDTrackInfo
{
    UInt16 dataLength;
    UInt8  trackNumberLSB;
    UInt8  sessionNumberLSB;
    UInt8  reserved;
#ifdef __LITTLE_ENDIAN__
    UInt8  reserved2:5;
    UInt8  damage:1;
    UInt8  reserved3:2;

    UInt8  reserved4:6;
    UInt8  blank:1;
    UInt8  reservedTrack:1;

    UInt8  nextWritableAddressValid:1;
    UInt8  lastRecordedAddressValid:1;
    UInt8  reserved5:6;
#else /* !__LITTLE_ENDIAN__ */
    UInt8  reserved3:2;
    UInt8  damage:1;
    UInt8  reserved2:5;

    UInt8  reservedTrack:1;
    UInt8  blank:1;
    UInt8  reserved4:6;

    UInt8  reserved5:6;
    UInt8  lastRecordedAddressValid:1;
    UInt8  nextWritableAddressValid:1;
#endif /* !__LITTLE_ENDIAN__ */
    UInt32 trackStartAddress;
    UInt32 nextWritableAddress;
    UInt32 freeBlocks;
    UInt32 clusterSize;
    UInt32 trackSize;
    UInt32 lastRecordedAddress;
    UInt8  trackNumberMSB;
    UInt8  sessionNumberMSB;
    UInt8  reserved6;
    UInt8  reserved7;
};
typedef struct BDTrackInfo BDTrackInfo;

#pragma pack(pop)                        /* (reset to default struct packing) */

#endif /* _BDTYPES_H */